itchy feet

beat feet

To run.

drag one's feet

To procrastinate, put off; to dawdle, avoid, or make progress slowly and reluctantly.

feet first

In the manner of a deceased person (i.e., dead).

feet of clay

In someone apparently strong and without failings, a hidden weakness which could lead to downfall.

find one's feet

To grow in confidence in a new situation as one gains experience.

get one's feet wet

To begin gaining experience; to tentatively try something new.

get to one's feet

To stand up.

hold someone's feet to the fire

To maintain personal, social, political, or legal pressure on someone in order to induce them to comply with one's desires; to hold someone accountable for their actions.