You gotta lube ‘em up before you blast your weird. Start with something innocuous, then ask them about something most people like, and then offer your special interest. It’s not that hard.
“The weather has been nothing but trouble lately. First too much rain and then not enough? I’m tired of it! The cemetery’s washed out and the streets feel like Halloween. I wish it were summer already. Have you had any sex lately? Do you like skulls?”