Wylla is a chirpy little kitten. She's got a complicated series of trills and coos for us, and a second and distinctively different set for Charlene.
When Bean enters the room, Wylla greets her with a bright "brrrrrrrRRR". She also gives her lots of "mehs", half-mews and an occasional silent scream.
I'm not entirely sure what she's saying beyond just a "hello", but it's pretty sweet to overhear these conversations.