I am to be the party pooper here. What are you going to do? Spend the bitcoin and save the fiat? That's not to mention that if you want to spend with bitcoin the options you're going to have to consume goods and services are going to be much reduced.

If you are hungry you can choose any of the restaurants on the street you are in if you are going to pay with fiat, while if you intend to pay only with bitcoin you will have to look in coinmap and you might have to go to the other side of the city.