Dunno, but it's like the ninja persona thing. If I had a ninja persona in the SCA, I'd be walking around in a cotehardie and turnshoes, looking as harmless as possible. Oh, wait, I do that already. (Wink).

A successful assassin or spy does not blow his cover.

A successful trickster does not reveal that she is, in fact, inhuman.

Now, if she wants to sprout tails and whiskers at a masked ball or perform kyogen, that's different.