Hi, I've got 2 questions to you:
First~ Do you mean how to put it on, so everyone can see it?
---> Go to 'Profile' (it's beneath the "Hello XY"), than you must look
for 'Modify Profile', and than you must click 'Forum Profile Information'.
There you'll find it. Hope, it works :3.
Second~ Or do you want a icon/signature? (I could to this for u :>
Just say a topic, what u want on it... etc. :3.)