Introduction (in 반말)
I'm very familiar with introducing myself formally, but is this how would I do it informally?
안녕! 내 이름은 나비이고 88년에 태어났어(88년생이야).
원예를 좋아해 그리고...
나는 부끄러워수줍은 사람이야.
[I don't think people introduce themselves in 반말 though. It would appear to be very rude because you are not yet close to each other.]