No one has ever been converted by litter.
And yes, if you’re sticking tracts all over a bus stop and not waiting around to pounce on someone when they pick it up to explain God’s Four Points of Salvation, you’re not evangelizing, you’re littering.
Please note that Paul did not bother sending out his letters to complete strangers. He was sending them to churches where he’d preached and taught for a while to strengthen the faith he’d personally told them about.
Face to face.
Possibly over a beverage or snacky foods of some kind.
(And if you see me picking up a religious tract you left on the bus seat and chucking it in the recycling bin, don’t holler at me from across the street like I just kicked your puppy. I’m keeping Portland beautiful.)