Something I realized about myself: My adrenaline shoots up really high whenever I have to introduce myself to a bunch of new people. Especially if they are sitting in a ring. I can actually feel my heart beating faster and some crackling goes on in my brain. The same thing happened when I was introducing myself to the cip people at nus, and also when I was introducing myself to my (smu) law og during our first dinner.
It doesn't happen when I introduce myself to just one or two new faces.
I think it's the thrill of introducing myself to a dozen new people at once.