To ogle someone is to look at them in a hungry, sexual way — staring at a body, not meeting a person. English uses it with a frown: it is not a compliment in decent company. Magazines ogle celebrities; a stranger on a train who ogles someone is being rude. It is informal, a little old-fashioned (younger speakers might say stare, check out, or something blunter), and almost always disapproving. You can ogle a thing too, half-jokingly — ogle a cake in a shop window — but the home meaning is people. There is also a noun, an ogle, for that look itself, though the verb is far more common. Glance, look, even stare can still be innocent. Ogle has already decided the motive. If you only mean “look at,” this is the wrong word.