everytime you go to a restaurant, tell the waiter you only tip in bitcoin. if they have a phone its trivial to load an app. otherwise, use the coinbase app to send a tip to their email address. cabs likewise. tip better, big enough so the experience is a positive one.
never ever pay for anything eithout asking if 'you take bitcoin yet?' when in power, force it. demand payment in bitcoin.
do not be too polite, or lazy: as well as being good for your book, it is a moral imperative.
This is wrong on so many levels.
Assuming most people have heard of Bitcoin, but only know it as "a shady currency used to buy heroin" or "an Internet-based currency, what a horrible idea", most people already have a fairly negative image of it. Do you think a waiter who makes $2 an hour plus tips is going to be thinking about how great it is that he gets to choose between missing out on tips for an hour, or spending another hour trying to figure out how to get "real money" out of that 51-character jumble of text some creepy Internet cultist just sent to his email? We're trying to prove that Bitcoin is a viable, legitimate, and superior form of currency, not scare people away from it.
If you want to pay for something in Bitcoin, ask the owner directly if it's a small business, or write the owner/CEO/etc a letter if it's a larger one. Don't take it out on hourly workers, and especially don't refuse to pay hourly workers money that they've earned.
If you insist on tipping in Bitcoin, tell them beforehand that you'll be emailing them some random text as a tip, and enjoy waiting two hours to eat your tomato, saliva, and urine soup.