1.
Don't forget about grammar:
2.
Avoid emoticon overload:
3.
Don't "hehe" and "haha" your way through life:
4.
Don't chat them as soon as they sign on:
5.
Avoid the play-by-play:
7.
Make sure they're not actually busy:
8.
Make sure you're typing in the right window:
Don't worry you'll get a hang of it eventually.