..give him attitude

"Well, why you stopping, mister? Put on the other shoe. You're not trying to look up my dress are you? You could be my grandfather!" you berate. You glance at his crotch. "Ohmigod! You are looking at my kitty! You've got a huge hardon in those polyester pants of yours! Ohmigod, do only pervs work at shoestores? I bet you want me to jerk you off with my bare feet, don't ya?" You continue to rant,making the poor man flush further, looking around to see if anyone's heard your tirade.

"Please, miss, I'm sorry if you got the wrong idea. If you like this pair, I'll give them to you free," he says breathlessly, taking off the one shoe and re-boxing it.

You gouge your now bare feet into his crotch.