Kind of-ish somewhat.

When you get your picture taken with a musician of your liking at the show usually you are going to want to show a bit more gratitude than just the "a-okay" hand signal. It says "I am kind of excited to be here, the music is pretty good, can't complain".
A thumbs up would have worked. It's a little camp counselor, but, it would have worked better than the tolerable trio over here.