1) Acting 2) Action on the side 3) Business 4) Dramaturgy commentary 5) Incidental activity 6) Incidental stage business 7) Performing 8) Playacting 9) Playing 10) Side action 11) Stage business 
• (n.) Action carried on aside, and commonly in dumb show, while the main action proceeds.
By'play noun Action carried on aside, and commonly in dumb show, while the main action proceeds.