People in general will groom themselves during their day. Be it rubbing their skin, adjusting their clothes, picking at a scratch or scratching an itch. With this in mind, since idle stances are race and gender specific, I'd like to see more racial-oriented ones.
Miqo'te brushing their tail, Roegadyn rubbing their muscles, Elezen stretching their necks or rubbing at their ears, Au Ra brushing their scales, things like that.

Objects would be lovely, but don't forget the person themselves!