Probably, Bitcoin price is the best advertisement. It's enough to say how much bitcoin price rised in 2017.
Accepting Bitcoin is also good thing. Offcourse, you will not find many people who will pay with Bitcoin. But when they will see that you accepting Bitcoins, you will get many questions about it. And you will be able to advertise all benefits of Bitcoin by answering their questions.
I don't think it's very good idea to show your Bitcoin earnings. I prefere to keep my financial situation in private.
I sometimes getting questions about Bitcoin, mainly about investing. And I just recommend to stay away from cloud mining and similar investment programs. I don't want that people from my community would loose btc by investing it.