Temperature wrote:
IIRC, when you press U, you get to the guild window right.
But there are several tabs including Union, friends, etc at the top. Try to click the icons
EDIT :
(found on google) hope it helps you
It changed quite a bit since then =p
You should see 3 buttons on top of eachother on the left side of the screen when you hit U. IIRC the second one will lead you to your friendslist.
I'll log on and confirm xD
/Edit: ok there are two button, the bottom one will lead you to your friends list where you can add a friend at the bottom.