catch a glimpse of

detect examine identify look look at notice observe recognize regard spot view watch witness

beam behold clock contemplate descry discern distinguish espy eye flash gape gawk gaze glare glimpse heed inspect mark mind note peek peep peer peg penetrate pierce remark scan scope scrutinize sight spy stare survey

be apprised of catch sight of get a load of lay eyes on make out pay attention to take notice

disbelieve disregard ignore miss neglect overlook pass by

forget look away unsee

be blind turn loose