They're not thinking about you at all. They're thinking about whether or not they can make rent, hoping their aging parents are okay, trying to remember all the things they have to juggle, worrying about their careers, etc.

Just because men observe, track, and scrutinize women in every space, doesn't mean the reverse is true.

We notice you're there, but if you're minsing your business, just keeping to yourself, not signalling openness to approach.... we'll leave you to your business.

Likewise, if we're minding our business, keeping to ourselves, not signalling openness to approach or interest....we'd like to be left to our business.