Personally, if I'm in a coffee shop or any store with some people, I pull out my wallet and subtly show them my Xapo debit card. Then they get curious on what kind of card is that since it doesnt look like the usual Mastercard or creditcard. Then I explain it from there on.
What's your way of spreading Bitcoin knowledge?
I sometimes sell bitcoins in my local area. This helps spread the knowledge and makes me money. What's your way of spreading Bitcoin knowledge?