Retail businesses lose  nearly $50 billion per year due to shoplifting and similar types of theft . Though you may not be able to eliminate theft completely, you can dramatically reduce the impact by knowing the signs and training your employees to be on the lookout.
Signs of a Shoplifter
Shoplifters can be any age, race, gender and social class. So you have to go beyond the basics and look for specific mannerisms and signs to minimize the effects of shoplifting on your business. Here are some of the top things to look for.
Shoplifters certainly don’t all fit into one category. But you may already be aware of some specific individuals who have shoplifted or tried shoplifting from your store. If you’ve caught someone, you can ask them not to return to your store. If you’re just suspicious of a frequent visitor, you might increase security measures or keep a closer eye on them.
In fact, new security systems that use facial recognition technology could help you identify previous shoplifters. According to Daniel Putterman, CEO of computer vision security provider Kogniz , his company’s system allows you to add a photo of a previous offender so you can get alerts if and when they try to enter your store again.
Kogniz is also capable of detecting unusual activity like an individual walking around your store multiple times. Even without such a security system, be on the lookout for people who visit your store regularly but don’t make purchases, or those who walk past your store multiple time while looking inside.
Oversized Clothing or Bags
Shoplifters often carry large purses or backpacks where they can easily conceal the items they steal. Or they might wear oversized clothing that could easily fit items inside. Of course, there are other reasons to carry purses or wear large coats, but it’s worth keeping an eye on anyone with a large, open bag.
Winter Gear in Summer
Jackets or large scarves can also be quite effective when attempting to conceal stolen goods. Of course, most people are likely to be wearing these items in the winter. But they should probably raise some red flags on warmer days.
Lumps in Clothing
Since there are plenty of legitimate reasons for people to wear jackets or oversized sweaters, you should also look out for additional signs. This could include awkward lumps under jackets, where the offender may be holding their stolen items.
Shoplifters often work in groups. To avoid drawing attention to themselves, they may split up so one can steal while the other distracts employees. Or they could simply take different parts of the store.
Distracting Staff Members
In fact, any sort of distraction or diversion may be a sign of a shoplifter. If anyone asks excessive questions or needs help in one specific part of the store, you may want to pay special attention.
Asking for Out-of-Stock Items
One common method for shoplifters to distract staff members is to ask for items that are not available in the main part of the store. If they can get you to go check the back stockroom, they can easily grab something and make their getaway.
Constantly Monitoring Employees
Shoplifters tend to pay more attention to employees than to the actual products in the store. If you notice someone looking at you constantly, you may want to pay special attention.
Examining Multiple Items
Shoplifters will often pick up items throughout the store and examine them so it won’t seem strange when they pick up an item to steal. This can also be a tactic to throw you off the scent, since you won’t necessarily know exactly what item was stolen.
According to  Dr. Lillian Glass, body language expert and author of “The Body Language of Liars,” excessive sweating, especially on the T-zone of the face, is common for those who are being deceptive. Of course, there are other reasons for excessive sweat, but it may be worth keeping an eye on someone who is especially flushed on a cold day.
Lack of Eye Contact
Those who are being deceptive also may have a difficult time making eye contact with people when they’re questioned. It’s not always a surefire sign of shoplifting, but may be something to look out for.
Looking Around Constantly
Shoplifters will also want to be sure that they’re not being watched when they actually go to steal something. If you notice someone with a swivel head, pay special attention.
Fidgeting is another sign of nervous behavior. Be on the lookout for excessive scratching, face touching, or hair pulling.
Nervous Behavior When Questioned
A study  from UCLA found that people who are lying tend to give short responses, over-justify their behavior and repeat questions when they’re approached by another person. If you believe someone may be shoplifting, simply asking if they need help with anything could give you clues about their intent.
Noticing Security Cameras
If you do have security cameras around your store, shoplifters are likely to take notice. They may also try to avoid those parts of your store and focus on back corners or areas that aren’t well monitored.
Loitering in One Spot
Shoplifters also tend to stand around for awhile in one particular part of the store. Pay attention to anyone spending an unusual amount of time in a back corner.
Filling Changing Rooms
In clothing stores, it’s common for shoplifters to take multiple items into a changing room so they can conceal items under their clothing without detection.
Multiple Guests in Changing Rooms
You should also be wary of groups entering changing rooms. They may be working together or trying to create some confusion among the staff.
Shoplifters do not have one specific profile. But your small business probably has a pretty consistent target customer. Those who don’t seem like your regular customers may be a bit more likely to shoplift.
Carrying Multiple Items
It is also common for shoplifters to carry around large piles of items so it won’t seem as unusual if one or two of them goes missing. In fact, some shoplifters may even purchase multiple items while also sneaking extras out of the store with them.
Shopping During Off-Hours
Shoplifters do not normally like to take things when there are a lot of people around. Even if staff members are busy, other shoppers may notice something. So pay special attention during slow times.
Loose Price Tags
Not all shoplifters simply take things without paying. Some may try softer tactics like switching price tags so they end up getting a very expensive item at a much lower price. Be on the lookout for any price tags that look like they were placed on a product haphazardly. And check prices on items that don’t have price tags at all.
To avoid being identified, some shoplifters will wear hats, scarves, or sunglasses that cover up parts of their face.
Once a shoplifter has grabbed their items, they are likely to try and make a fairly quick exit. They won’t necessarily bolt out of the store, though that should raise some red flags as well. But they may walk a little more briskly than other customers. So it could be worth checking security footage.