eyewitness, sightseer, spectator; see observer 1.
"onlooker." YourDictionary, n.d. Web. 11 October 2018. <http://thesaurus.yourdictionary.com/onlooker>.
onlooker. (n.d.). Retrieved October 11th, 2018, from http://thesaurus.yourdictionary.com/onlooker
Someone who observes:
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