to peep (through); to peek; to await (one's chance); to guess; to infer
to try and judge a person's feelings (from their expression)
to infer; to figure out; to get an idea of; to tell; to imagine; to guess
to watch for an unguarded moment
to wait for one's chance; to wait for an opportunity
to wait for an opportunity
to make sure someone is asleep; to listen for the breath of a sleeping person; to commit a wrongdoing while someone is sleeping
to sound out a person's feelings; (lit.) to consult a person's pleasure
to have a narrow view of things; (lit.) to look at the sky through a tube