ok,it is a noob question,but anyone can help me ?

Hit Escape -> Setup -> Login -> Add the tag to your name -> Type in your password -> Click Save.

in game :

(1) press escape
(2)click on setup
(3)click on login
(4) where your username is just type ["clantaghere"]math00

First of all, join a clan >_>

then, go to setup > login, and type in your clantag between the brackets "[Taghere]" and use your normal login info.

so for me it's "[SMASH]Mapleleaf"

EDIT: lolepic, three people in one minute, all with the same answer XD

thanks for the help

Were the ones who jump at the oppertunity to help :>)