I could relate to those people that doesn't talk well.
To be honest, I am useless when we talk about promoting Bitcoin. I could talk to people about it when someone open something related to it. It is like I could push it there sometimes but we usually ends up with the scams that is happening until we just forget all about Bitcoin and cryptocurrencies and just talk about scams.
For instance, the Facebook bounties make some friends know about it.
I think that is one way to promote it.
I also joined a Facebook bounty in the past but some of my friends just like the post I am doing and not really asking what I am doing. But I guess that would depend on the friends you have. Most of the friends I have already know what I am doing and what cryptocurrencies are so they don't usually ask what it is or how they could get on it. Another thing is that as far as I know, Facebook banned advertisements about cryptocurrencies in the past, isn't it?