I just heard some of my friends chatting in a gathering and they think Bitcoin is scam and Ponzi. I just give them a smile and wish they will educate themselves a bit.
So, I would like you to give me some suggestions, how I can give them some hints with soft words which can change their mind or at least give them some more space to think twice?
First of all, you can't please anyone about bitcoin. If their mindset is bitcoin is a scam, there's nothing you can do about it. At least, for yourself you know that bitcoin is not really a scam. Just let it be, and let them think what they want to think, and do what they want to do. Just do not mind them, mind your own business, because you know what is right.