Talking over your head?

[sad05]

Can someone tell me how people get text to appear over their heads? Like "open" or "I need IK"

I see it in trade game rooms all the time but I don't see the instructions listed anywhere.
Thanks

 

[simpleforce]

lol this is a good newbie question to ask.
type :
!give me all ur gear
and u get over ur head that message. just put "!" then ur message