Do you twitter? Looks like everyone is doing it.

I've been saying forever that I will not be joining Facebook or twitter, but actually might possibly try out twitter for a bit :) (just for my food stuff).

Question: what name should I use?

1) my actual name? Olga
2) my blog name? Mango & Tomato
3) or my email name, which I use to leave comments sometimes? orchidgirl1979

Any advice as to how to proceed from those of you who already use twitter?
Thanks!