Leering or looking

[sizzledrizz]

I'm confused about this. When does looking turn into leering? Is looking for too long, i.e staring, classed as leering? Or is leering the obvious looking up and down, making kissing shapes with the mouth and undressing someone in an obvious way? And does that count as sexual harassment? I have had all of the above, it all makes me feel uncomfortable. The worst is the last undressing type of stare, which makes me a little afraid. The man doing that is very big and someone I cross paths with a lot, and I don't know how, and feel quite frightened of addressing it.

Not sure to what extent you'd be able to tell from the receiving end. Staring at you or thru you (ie: into space but you happen to be in the way) is hard to tell at distance.
Staring directly at boobs or similar from quite near is a definite lear though.
I'd advise against trying to engage in conversation as this may look like an opening to them. Have you ever tried to make eye contact when they do this (but for the love of god don't start with that!!), with one of those 'Can I help you / what do you think you're doing looks'? If they look instantly away, you've won the power game. If they hold contact, try a glare for a moment, then look away to the side (not down) and don't look back.
And if they're making kissing shapes or licking lips, they are a pantomime villain and need to get back to rehearsal.