How do I add words to my animated avatar?

[Tama Einstein]

See my avatar? I really like it because it's cute and animated. But I would like to add some words to it, but also keep it animated. Or even better different words for each move! If you get what I mean...

 

[Tama Einstein]

If someone wants to just do it for me...(I would appreciate it with arial font)

Normal (standing): OMG

Waving: I'm 3D!

 

[Tama Einstein]

Awww...muffins!