THESAURUS
let on
acknowledge, act, act a part, admit, admit everything, affect, allow, assume, avow, betray, bluff, come clean, concede, confess, cop a plea, counterfeit, cover up, disclose, dissemble, dissimulate, divulge, fake, feign, four-flush, gammon, give away, grant,
let on like, let out, make a pretense, make as if, make believe, make like, open up, out with it, own, own up, play, play a part, play possum, playact, plead guilty, pretend, profess, put on, sham, simulate, spill, spill it, spit it out, tell, tell all, tell the truth, uncover