When people ask, What do you do for a living? I have a full time job, but I also trade crypto-currency. I do not like telling them about my currency and Bitcoin activities because when I tell people about trading currency online our relationship sometimes changes. They start scheming or they think "I can do that, better than you" and I suspect they want to secretly start trading too.
Does anybody relate to this?
Its simply because others don't want to make money more than you.

I will tell them definitely about what I am doing but will never reveal any things about how to do it.
Come on man, there is no need to drop each other and be jealous of your own friends, if you love your friends, of course you will be happy to see them succeed, and that is the opposite. I spread bitcoin trade to anyone of my friends, and I was very happy if they wanted to ask.