Depends on whether we're talking behavioural or physical traits, I think I've listed my behavioural traits elsewhere but to sum up - I act very aloof, can (and do) curl up and sleep anywhere, stare people down unintentionally, when hearing sounds I move my head to where my ear is pointing to the sound (since I can't revolve my ears), scratch, sniff, lick, nuzzle at inappropriate times, and so on ...
As for physical traits, well I've been told I don't open my eyes as wide as most people and I'm quite hairy ... that about as far as it goes though, lol.