If just introducing it is difficult and easy to leave, it's better to make newbies think that with bitcoin investment our money can increase hundreds of percent in a year or even less, I'm sure in a simple way like that newbies are more interested than technical things about bitcoin.
As per my experience, most newbies are interested in Bitcoin investment but when they know the price of bitcoin, they feel disappointed that they do not have this much money or they think that the Bitcoin price is way too high.
The first thing we should tell them that they can buy Bitcoin with 50$ or 100$ also. Secondly we should show them the historical data of Bitcoin which show sthat Bitcoin always increase in value.