All you can do is ask if they have LE,s many do and some will look for you some wont. You are Male so go to a female cashier that seems to help. Dont go when they are super busy. I go after midnite and the late shift is always happy to have someone to talk too. When they look for uncircs or special chips always toke them because they dont have to look. Maybe focus on house chips first as they are easy to come by. Goodluck. John R-6920