Have you trained someone who’s native language is not English?
Group exercise, nearly every class I teach, as I can cue Zumba with my hands and I have a wonderfully diverse class.
Personal training, not as often but yes. I’ve found show / do to be helpful, as well as light touch cues, drawing a gentle touch in the direction I want movement, i.e. light shoulder-blade touch and draw them in towards the center for scapular retraction.