What guys think when they see a woman taking a coffee by herself?

I've started hanging out with myself outside from home now that the restrictions of Covid are free in my country I'm going to coffee shops, and breakfast places "solo". I don't feel weird or anything, I'm used to and enjoy my solitude. Yet today I felt weird, two guys near my age were hanging out and I did notice they were looking at my table while talking, not in a lustful way but it was I think kind of curious.
This got me to wonder, what do usually guys think when they see a woman taking a coffee by herself?
What guys think when they see a woman taking a coffee by herself?
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