There are different ways how are you going to convince people to invest in bitcoin, here are the things I already did in order to convince people like my schoolmates, relatives, local citizens that lives here.
Show to them some proof of my profit.
Show the chart of the bitcoins price, show to them the bitcoin price in the past few years and todays price.
Give them knowledge about the cryptocurrency, blockchain etc.
Explain to them how are they going to earn with just internet, phone/pc.
While convincing people to invest in bitcoin start with just a normal conversation and tell to them that you're earning a profit just at home and of course they will be wondering how did you do in order to earn at home and that's the time you're going to tell them or show to them what's on the list. As easy as that, and don't ever force people to invest in bitcoin let them go to you and ask what they're going to do in order to earn profit.