Other crossword clues for answer "SITSIN"SITSINJoins a jam sessionJams with the bandPerforms as a guestSubs (for)SubsAttends, temporarilyObserves, with "on"ParticipatesSubstitutesActs as a subAttends class without credit.Participates (with "on").Takes part.Protests in a waySubs at bridgeAttends as a visitor, with "on"Audits, with "on"Doesn't officially enrollAttends a meeting, with "on"Substitutes (for)Occupies, as a rocker