I am a barre bitch, I am more friendly in other classes like yoga but at barre I focus on myself, my form, the mirror. I think what does it is that the mirrors and the poses make you super conscious of the fact that if you want to have efficient movements you need to be very precise and each move kinda of have to look good (not the purpose but if you look good you are more likely to be positioned properly).
Anyway, long story short: not the best time to be your most goofy loud self. I want to be quiet and focus