peek

peek verb [ I ] uk/piːk/ us
to look at something for a short time, often when you do not want other people to see you

выглядывать, заглядывать украдкой
I peek ed out the window to see who was there.

PEEK noun

uk/piːk/ us  have/take a peek
to look at something for a short time

взглянуть украдкой