Some people have had good experiences taking their pet snakes to a public park also, for some "chance" meet & greets, because people do take their
pets (typically dogs) there, but it's not a "sure thing": you might check local laws & ordinances before you do that, and also realize that a loose dog
may prove to be "too interested" & harm your snake (or try to?)...so it's not without risks. Also, snakes can over-heat & die from excess heat & sun
exposure...especially if you're holding them (adding your own 98.6*) so be careful about that. In my town here there was a guy who used to walk
around town along main roads with his large boa on his shoulders, loving the attention he got. He meant well, but I found out from a vet tech friend
of mine that his snake died from being accidentally over-heated. The advantage of a park (IF allowed) is that there's plenty of space where people
don't feel confronted by you...if they want to get closer, they can, and usually there's some shade too.