simper

1. (intransitive) To smile in a foolish, frivolous, self-conscious, coy, obsequious, or smug manner.Examples: "How the fools kotowed and simpered while I looked over their jewels and speculated upon how much I could get for them!"; "a whimpering, simpering child"; "But where daft Nell simpers at him and tries to muss his slicked hair and pull it forward over his broad, Christian brow, my little Dot is looking nowhere but at the ground, still praying, praying even while she stands, and Rick has actually to touch her forearm with his finger in order to alert her to his Godlike nearness."intransitive

2. (obsolete) To glimmer; to twinkle.Examples: "Yet can I mark how stars above / Simper and shine."obsolete