The subway cat call

is actually remarkably consistent.

The context: Walking towards each other, going to pass each other on our way to our respective destinations.
The set-up: Prolonged eye contact. Not lewd or leering or aggressive, more like excited about the seduction bomb he's about to drop on you.
The climax: Lean in at the moment of passing and deliver choice line. (Tonight: "Moviestar!")
The follow-through: Mercifully none.