~Confusion~

Hello!!!
So, I'm new to this whole "World" concept, and I was wondering if anybody had some advice, or ya know, tips and tricks to having to do with using a "World". For example, can other people post to me on my World??? Uh oh.... if you can't, then I guess the only way people can respond is to p.m. me!!! Well, time to clean out the ol' saved mail folder! Hahaha.... See ya's!