Legs: squats and deadlifts. But when you're running regularly, you may find that your legs are already getting enough of a workout from that; it may be more important to balance it out with stretching rather than hitting them with even more work.
I second thalia's comment about compound exercises (and want to add a plug for my personal favourite, the Turkish get-up); they hit multiple muscle groups at once and I generally find them much more fun and less tedious than trying to work every single body part in isolation.
wrist curls
That's an ultra-specific exercise -- if you don't mind my asking, is there a particular reason why you're doing that?
no subject
For abs: planks planks planks. I did a mini linkspam on plank and related exercises here.
Legs: squats and deadlifts. But when you're running regularly, you may find that your legs are already getting enough of a workout from that; it may be more important to balance it out with stretching rather than hitting them with even more work.
I second
wrist curls
That's an ultra-specific exercise -- if you don't mind my asking, is there a particular reason why you're doing that?