its really kool. my gozurotchi did it the other day also. i think its really funny!! XD i just wish my 2 tamas (penny&aaron ) were gozurotchis!!!!! lol anyway its normal and stuff lol
Well anyways, it's normal, every tama has an item, for instance: If a Mimitchi has a pencil it will write THANK YOU while other tamagotchi's may think of what to write or write 1+1=2.