simperer

from WordNet (r) 3.0 (2006)

simperer
    n 1: a smiler whose smile is silly and self-conscious and
         sometimes coy

from The Collaborative International Dictionary of English v.0.48

Simperer \Sim"per*er\, n.
   One who simpers. --Sir W. Scott.
   [1913 Webster]

         A simperer that a court affords.         --T. Nevile.
   [1913 Webster]