It is a natural phenomenon that people take things more serious if they are in need of it and come to you than when you are trying to convince them to have such a thing. It's just like someone who wants to learn a trade, you will be the one to go to your master and register your interest with him. It won't be the same with someone whom the master is trying to force to come learn the trade. It is never a good idea to meet a newbie and try to convince them to invest in bitcoin. But if the newbie comes to you, try your best to teach him all he wants to know, that's were the seriousness will come in.