also shmooze, "to chat intimately," 1897, from Yiddish shmuesn "to chat," from shmues "idle talk, chat," from Hebrew shemu'oth "news, rumors." As a noun from 1939. Related: Schmoozed; schmoozing. Schmoozer is from 1909.
A person who schmoozes, esp as an aspect of personality: He has none of the small coin of politics. He's not a schmoozer (1909+)