If you watch for too long, it really just looks like she's dancing. Or playing the congas.
The bottom panel actually goes well with the beat of my music xD She's got good rhythm
I just found this on your OkCupid profile.
At first I thought "Page 33" was a single comic, so, I have to agree with Larkie.. it looked like he was dancing.
After reading all 33 pages, I learnt two things.. it's a she, not a he, and you're a very talented artist.