Lmao I’ve done this same thing at my old uni. I went to the second floor and asked to look at the language-learning books. Sat down, browsed a few, and tried the learning method on one for a bit to see if I’d like it for an hour, then got up and left. The girl at the reception was so confused and told her coworker in complete surprise as I left.

I think I’ll go find that book online now that I think about it.