action, movements, motions, bearing, behaviour, manners
Example sentences
彼は動作がぎこちない。
He is awkward in his movements.
彼はやや動作がのろいが、その他の点ではよい生徒だ。
He is a little slow, but otherwise he is a good student.
彼の娘は動作がきびきびしている。
His daughter is quick in her movements.