No clothing requirements. The only time I perform it with a jacket is at a gig. I actually prefer to not be wearing a jacket. It's unnecessary. Also, you can do this surrounded. In fact, I usually do. Just work with your angles and use some misdirection. It isn't hard to figure out. I've been performing this for years now, since it very first came out, and the effect and product itself is gold. The only thing you need clothing-wise is a back pocket in whatever pants or shorts you're wearing for your keys to sit. One of the best gimmicks I ever bought. A+, 5 stars.