Same as you do on Twitter. @ and the username.

DirtyLaundryDiva <~~~like that lol

I was wondering the SAME thing. Thanks for asking that... I didn;t want to be that "one" to ask LOL

Godfather

ooo it worked!

Sweet!

I only recently figured it out, don't feel bad!

so much great info in one itty bitty plurk! Thanks!

chowderhead