Checking out women...

[Spray_resistant]

No, why would I want to do that?

[ßringer]

I don't know how subtle my technique is, nor do I care. It's in our nature as men to behave the way we do, and I make no apologies for it. It's what ensured the survival of our species.

[Barn]

The eyes move faster, and more stealthily than the neck. It's all about the few seconds planning and putting yourself in a good position from the get go.

I don't think it's as difficult as the OP makes out.