From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
peek /pˈiːk/ <v>
forschend blicken, spähen, schielen, gucken [Dt.] [ugs.] , kieken [Norddt.] [ugs.] , lugen <v, intr> [geh.] [veraltend]
"She peered/peeked/squinted over her book." - Sie blickte/spähte/schielte über den Rand ihres Buches.
Synonyms: look inquisitively, peer, squint
see: looking inquisitively, peering, peeking, squinting, looked inquisitively, peered, peeked, squinted