I don't know about online, but this week, probably around 60 people. Normally much less than that, though. I debuted Thread at school, and I've performed it in nearly all of my classes, and two times in one (the first time was just for two people). I also performed for my siblings. Now, I've performed magic everyday in my 7th Hour class this week- does that count as like 100 people, since I did perform for them on different days, or does it just count as the 20 or so, since they're the same people? I'm going to assume that it counts as 20 or so.
I'm also going to try to get a restaurant gig next week, so that'll increase the number quite a bit.
So this week, I've probably performed for about 60 people. I'll be performing in my 7th Hour class every Friday from now on, so that's 20 people a week right there. Unless they don't count because again, they're the same people. It just greatly depends.