For example: Whenever you walk into a store, ask if they accept BTC or cryptocurrency etc. ? Even if you know they don't. It primes the cashier or manager to better acknowledge the next customer who asks a question like this and also starts a conversation or beginning to something new.
What would be your idea?
Ask someone about bitcoin is not bad I think. If the people you asked have no idea then they will be curious about what it is. Since your example is in the store, then can now have idea of accepting bitcoin as a method of payment.