How do you put a signature on a Motorola i886?

I just got the new Motorola i886 and I want to add a signature to it like I've done with all my other phones. I just can't seem to figure it out on the phone. Any help?|||duhhhhhh call motorola and ask them.. grow up.|||Call up Motorola and they will tell you how. Or go on YouTube and watch a demo video, there will probably be one.