play-acting

n [U] (a) performing in a play1(3) 演戏. (b) pretence, esp of feelings 假装（尤指感情的）.

play (sth) off, play a joke on sb., play a part, play a part in, play along (with sb/sth), play at sth/being sth, play into sb.'s hands, play on, play out, play sb in, out, etc, play sth back (to sb), play sth down, play sth out, play the devil with, play up to, play with, play with oneself, play with player, play with sb/sth, play-act, play-back, play-by-play, play-off, play-pen, play-room, playbill, playboy, played out, player, player-piano, playfellow (also `playmate), playful, playfully, playfulness, playgoer, playground, playgroup (also `playschool), playhouse, playing-card, playing-field,