What word or phrase does your mother always say?
early 15c., "manner of carrying the body," from Medieval Latin gestura "bearing, behavior," from Latin gestus "gesture, carriage, posture" (see gest). Restricted sense of "a movement of the body or a part of it" is from 1550s; figurative sense of "action undertaken in good will to express feeling" is from 1916.
1540s, from gesture (n.). Related: Gestured; gesturing.