You could put a decal on your car so that as you drive around people will see it. The Steem logo looks sort of like the Monster energy logo, so people might notice it more and try to figure out what's going on. If you don't have a car, you could hang signs off the side of a bike!

You could talk to a coffee shop and convince them to take Steem as payment. You could even make a deal where the Steem the shop accepts as payment goes to you and then you pay them cash in exchange. Once they see there's value in it, they might just keep it themselves. Just writing off the top of my head here.