What are you talking to them about?
Most of the time it's looking for situations to talk about.
For example, I recently handed a White women thong-wearing an atheism pamphlet the beach. Later she was pumping a float boat. As she dragged it into the lake, the female lifeguard jumped out and told her she can't have it there. As she got back to her spot, I came to her a 2nd time to make the "did the lifeguard just ban you for that?" type thing, and stuff like "you may have to go further north to where there aren't any lifeguards."
Either way, small convo to take off.
Another time, I handed another White woman an atheism pamphlet, who was laying on the sand part of the beach next to the sidewalk. Later, a t-shirt long-pants dude wearing sunglasses and baseball cap, that doesn't speak English, parks his bike pretty much directly in front of her blanket and gets a nice view of her. So I come back to use that as a line "was this dude here before or after you got here" she says after, and I'm all he chose the best view in the beach, and I left. And she also put her clothes on and waited for him to leave... And left shortly too.