Don't. It's a terrible idea to try and get people involved in your decisions when it involves money.
If the price drops, they will blame you, whether vocally or subconsciously, and they won't like you for it. Since that's pretty much 100% likely to happen at some point, it'll be extremely damaging to your reputation with your family and friends.
Well, I have started making some few cash from this
If someone spoke to you saying "I've been making loads of money from this new blockchain digital peer-to-peer fancy crazy thing, now I have cash!", and you knew nothing about BTC, would you honestly not think it was a Ponzi scheme? If I didn't bother to research it, I sure as hell would.
Your mentality is utterly wrong anyway, since you're trying to earn fiat money rather than actually use or hold BTC in any way.