Hi, you ask for me? I'm down, you would certainly find me. :P
So, I'm here, and I don't write anything about me here, because then what could we talk about? If you'd like to know what I do, write me. One thing I can tell about me: I play guitar and sing.
I don't say don't write 'hi', in my experiences, more people replied to hi then a long personal message. But if you're about to write a short message or just 'hi', you better write for example 'It's another awesome day' or 'I feel awesome' or something else creative. Don't say 'how are you', it isn't very creative, and no such good answer exists for it beyond 'fine, you?'.