I already know which drivers like cyclists (or, at least, respect them):

1. They DON"T honk at me (unless it's to warn me about something truly dangerous).
2. They don't pass me unless they can do so safely.
3. They give me a wide berth when they do pass.
4. They signal their intentions.

I'd much rather wear a shirt that promotes the benefits of cycling -- even if it's a subtle message. The one I liked when I saw it was

CYCLING:
RIDE TO EAT
EAT TO RIDE