How to send someone a public message on twitter.?

[ethereal720]

So I just got twitter, and i'm confused.
I go to people's pages, but how do I send them a public message that appears on their "wall". And I see people doing @blahblahblah and #blahblahblah... what does that mean?

thanks in advance!

[grandfather raven]

"@username message" will show on their page, unless they block you. it also shows on your page, and your followers, just like a normal update


#blahblahblah is a search tool, turns "blahblahblah" into a link that can be clicked to see all Tweets containing "blahblahblah" (i'm still unclear on why this is used since Twitter searches for "blahblahblah" will give the same return)

[Jfloody]

I just got twitter last week too and i was confused for a while but i found this site that helped me out alot and it will teach you how to do all of the basic function on twitter. You should check it out the site that i found was
http://twitter.trafficvault.com