This happened donkey years ago to me. It's more like a voyeur....
Was working part time for a fast food outlet while waiting for my results.
Saw a couple, both Caucasian eating their breakfast when I was doing my round outside to clear the table and wipe the table etc
The lady and me exchange eye contact a few times when I was busying myself doing my thing.
As I was finishing my round and walking toward their table one final time, we exchange eye contact again and she spread her leg intentionally
Best is, she was commando
I smiled at her and she smiled back and look away continue eating