search through the section of nuts looking for a bag of assorted nuts instead of mixed nuts then complain to the whoever comes past when you can't find them. Or complain that these bags have an inadequate cashew to peanut ratio and you can't buy them unless they are specifically ratioed.

(Lol!)

Follow a person around and whatever they pick up, say something like "Good choice!" or "I love that stuff! You know one time..." then continue with a long story.

Pick the person getting out of the vehicle closest to yours in the parking lot, follow them their entire trip, and get to know them eerily well