uh-huh

yes

Opposite of no

• yeahCasual spoken agreement
• yepLaid-back assent
• mm-hmmVocal nod

sure · okay · alright · right · indeed · absolutely · certainly · definitely · agreed · correct

um

Spoken hesitation marker

• uhVocalized hesitation marker
• ohSoft exclamation of realization
• ahExclamation of realization

huh · mm · hmm · aha · ooh · eh · mhm · er · well · wow

nod

Brief head tilt

• attentionFocused mental awareness
• hearingPerceiving sound waves
• engagementCommitment to wed or attend

acknowledgment · response · feedback · rapport · comprehension · reception · processing · understanding · interaction · dialogue

grunt

Low guttural sound

• shrugShoulder gesture of uncertainty
• yupInformal assent
• nahCasual negative reply

cool · chill · whatever · laid-back · offhand · informal · colloquial · slang · relaxed · easygoing

doubtful

Uncertain of truth

• disbeliefRejection of truth claims
• sarcasticMockingly insincere in tone
• ironicExpressing contrary meaning

unconvinced · suspicious · questioning · dismissive · incredulous · eye-roll · side-eye · dubious · really · whatever

• affirmativesyes, yeah, yep, yup, absolutely
• agreementagree, accord, yes, yeah, yep
• interjectionsah, hey, aha, sheesh, oh
• kidspeakboo-boo, booboo, cooties, gimme, gonna
• saying yesyes, nodding, agreeing, sure, accepting
• Quick Responsesnod, smile, shrug, wave, wink