Today I went to a free yoga class in the middle of a shopping center. I had no idea if I'd know what to do (like where to set up my mat and stuff), if I'd embarrass myself, if I'd be able to keep up with the instructor, if I'd over-exert myself since I don't exercise or do yoga normally, etc. Also I was hoping I'd meet someone there and start up a conversation, which would have made me extremely anxious and probably wouldn't have ended well, but I put myself out there anyway.