I feel very inspired right now. I just came across a video in which there's a Bitcoin ATM in the country! I feel so glad to see how Bitcoin is getting adopted. This proves that after all, our promotion of bitcoin is helping in spreading the news. And we aren't planning to stop the promotion anytime; we're even planning to hold more seminars to help people know about bitcoin. Now, one of the advantages of this Bitcoin ATM is that anyone who doesn't know what Bitcoin is and sees it would ask what the machine is used for, and from there, it just keeps spreading!!!
Watch the video here to see how it works. BTW, What progress is happening in your country? If none then try doing more in favour of bitcoin (for countries that find bitcoin legal).
This might not be a sign of adoption, but it is a very good move by Nigerians. Imagine that a lot of people come across the Bitcoin ATM, they are probably going to ask about it just like you have said. And its not just that, the news will be trending, which I am very sure that it is already, because I have already seen someone mention this here in this forum and I have also seen it on Google news that an ATM was launched by an exchange in Nigeria.
When the news continues to trend like this, a lot of people who are not yet into Bitcoin will come across it and will be interested in know what Bitcoin is all about. By the time they some research about it, they will likely become part of it. And if they used Google in searching about it, it will be a personalized topic for them and will always show up on their Google News if thats what they use.