eyewitness, observer, spectator, onlooker, viewer, watcher, bystander, beholder, earwitness, gawker, rubbernecker, looker-on, passer-by, rubberneck, sightseer, fly on the wall, non-participant, gaper, audience, gazer, looker, seer, testifier, passerby, passer, pedestrian, crowd, ogler, stander-by, clapper, kibitzer, standee, perceiver, commentator, reporter, spy, snoop, lookout, spotter, blogger, monitor, commenter, audience member, one of an audience, listener-in, little pitcher with big ears, voyeur, busybody, peeper, nosy parker … more

endorsement, countersigning, initialing, initialling, autographing, inscribing, superscribing, underwriting, countersignature, superscription, validation, signing on the back … more

endorsement, autographings, underwritings, countersignatures, superscription, validation

audience, spectators, crowd, gathering, assemblage, assembly, congregation, onlookers, gallery, patrons, turnout, fans, followers, house, listeners, throng, viewers, company, aficionados, buffs, devotees, addressees, admirers, attendance, draw, hearers, hearership, listenership, observers, public, punters, stalls, watchers, concertgoers, freaks, moviegoers, playgoers, showgoers, theatergoers, theatregoers, gate, box office … more