oh dear....not my kind of music at all, mykl! My ears......!

interesting topic though. I've NEVER considered myself an extrovert...I got something like 99% introvert on the MBTI test. But reading the above, there are extrovert-like qualities I possess. For example, I *do* initiate conversation with random people...people on the bus, in a lift, in a waiting room, etc. Not all the time, but I do, and I don't feel awkward or embarrassed about doing so. The trouble is, I think people find me a bit odd or strange because I gravitate towards saying really bizarre things to people. I just find it amusing. is that weird?
I'm also quite good at gently bringing someone who's VERY quiet "out of their shell" and making them feel comfortable.
On the other hand, in situations where it "matters", I'm one of the most socially awkward people around. For example, meeting my partner's family, I was literally shaking...and sooo quiet. It took me several occasions of meeting them before I could speak a bit more comfortably. I've known them for 4 years now and they're lovely people but I still get nervous before they visit! In new employment situations, job interviews, meetings, new classes etc I clam up and get very quiet/shy/anxious. But if I'm in a cafe with my friend I can quite happily start a conversation with people we don't know on the adjacent table. Or if a friend introduces their friend to me, I can be quite chatty and open. When I'm with a group of close friends I can also get quite hyper and bubbly.
I love my alone time though. My partner and I are together a lot but we both often sit and read or go on our computers rather than talk (he's an INFJ). Even still I need a few evenings a week of just being on my own in my own space.
Is all this typical for an introvert or am I more of an extrovert than I realised?