Noun

• S: (n) blarney, coaxing, soft soap, sweet talk (flattery designed to gain favor)

Verb

• S: (v) wheedle, cajole, palaver, blarney, coax, sweet-talk, inveigle (influence or urge by gentle urging, caressing, or flattering) "He palavered her into going along"

Adjective

• S: (adj) coaxing, ingratiatory (pleasingly persuasive or intended to persuade) "a coaxing and obsequious voice"; "her manner is quiet and ingratiatory and a little too agreeable"