Not a big deal brother...
Try to introduce them btc as a online currency and a payment system..
Then go some deep and tell them advantages of using btc like animosity, secure, fast , easy use , etc...
Then go more deep and tell them what they can do with btc like trading etc..
Agree with you, Bitcoins have all those advantages that can attract anyone to use and trade bitcoins.
Just a simple introduction is enough then other will automatically look after bitcoin. It is currency of modern world and all the people are already attracted towards it so it is not difficult to convince anyone to use it.