Peek

(v. i.) To look slyly, or with the eyes half closed, or through a crevice; to peep.

Thesaurus Entries

bend the eyes, blink, cast, direct the eyes, flash, gander, glance, glimpse, half an eye, look, meddle, nose, peep, peer, play peekaboo, pry, quick sight, rapid glance, slant, snoop, spy, squiz, take a peep, wink