gaze
verb
he gazed at the photograph:
stare, look fixedly, look vacantly, look, take a good look, gape, goggle, peer, leer;
ogle, eye, contemplate, survey, scan, study;
informal gawk at, rubberneck at, give something the once-over, get a load of, check out;
British, informal gawp at;
North American, informal eyeball;
literary behold.
gaze Oxford Dictionary of English