举手投足 is a chengyu (four-character idiom) that literally means 'to lift a hand and set a foot' and figuratively refers to every move or action a person makes. It often carries the connotation of one's mannerisms, bearing, or the way someone carries themselves in daily life. Unlike a simple translation like 'every action/move', the idiom implies a certain style or elegance in those actions, and it's commonly used to describe grace, dignity, or naturalness in behavior.