We must promote cryptocurrencies. The more they are popular, the better. It will have an impact on the market and this is important. Talking about it with people we know is easier. Moreover, we must not stock talking only about the profit, but the whole system. The blockchain technology has a lot of advantages. People should be aware of that and this could be useful to them. Do not hesitate to promote Bitcoin to people or to explain to them how to earn with it. The more people are in it, the more we can all earn.