Crossword clues for Become interested, with "up" 3 letters:SITBecome interested, with "up"SITSUPSuddenly becomes interested, in a wayTAKEUPBecome interested in.SITSUPBecomes interestedHEATUPBecome interesting, like a pennant raceTAKESUPBecomes interested in.ENTHUSEBecome ardently interested: Colloq.PALLBecome less interestingWARSGeneral interests that become private matters