Dude the best place to meet girls is at work, I recommend finding a place to work that has a large number of employees (which in turn will have a large number of guests), the probability of you hooking up is tremendously high. You have a chance to mack on coworkers daily, if you have any game you'll be hooking up in no time. Trying to pick up girls at a Walmart is going to be very difficult, however I have picked up a cashier at Wholefoods before, but this was after numerous times of me going in there and always going to her register and making little small talk, it took months.