Interjections can also be confused with adverbs when they appear following a form of the verb “go” (as in "he went 'ouch!'"), which may seem to describe a manner of going (compare: 'he went rapidly'). However, this is only a superficial similarity, as the verb go in the first example does not describe the action of going somewhere. One way to differentiate between an interjection and adverb in this position is to find the speaker of the item in question. If it is understood that the subject of the utterance also utters the item (as in "ouch!" in the first example), then it cannot be an adverb.