annoyed -- as in "what are you waiting for?  play the game already!" 

arms crossed, foot tapping -- maybe an occasional deep sigh if you really want to go big!

sits down, reads book.

munches on an apple.

Those are long idles, is that what you are looking for?  or just general standing idle?

Starts looking at her cellphone and texting with it.

Play with hair

put lipstick on

light a cigarette

tie shoe laces

blow bubble gum bubble

stretches

:)

*ahem*

knees bending

hips somewhat gyrating

kinda like them female mortal kombat ninajs. lol

Dancing is always fun as an idle animation even for a serious looking character.

i likw boom shakas suggestion.  annoyed foot tapping, what are you waiting for type stuff.

She could take a few seconds to fix her scarf.