To be honest, I got to know Bitcoin more after being active in this forum, so it's really good to suggest newbies to be active in this forum. Actually
there are many articles scattered on the internet about Bitcoin, but if we are not careful we will get misleading information. The problem is
the newbie will have difficulty filtering the information obtained on the internet, then the best way is to join this forum and read all the topics
about crypto in this forum, if there are those who do not understand can join the discussion in this forum. I believe slowly newbies will understand
how Bitcoin works, and understand how to use Bitcoin.

There are a lot of things to learn about Bitcoin, so if he’s going to be asking what Bitcoin is simply all about, is just a peer to peer transaction method. With that said, if he’s talking about investments and how he’s going to go about that, there are a lot of things that he can do in the Bitcoin market: he can choose to be a trader (which is a day trader) or he can just be an investor that would be going long term investments.

Then I think you should make him understand the risks that are involved in investing his money in Bitcoin, because someone might have told him that they earned a lot of money from Bitcoin doesn’t mean that he is also going to make that much within a short time, he will need to have patience and invest what he can afford to risk.

Their is not too ways to educate whoever that have interest in bitcoin, the only thing to do, is to let it know bitcoin through following measure.

(1). Applying YouTube video tutorials
(2). Introducing the person to bitcointalk forum, and the person should mind this two boards below, Bitcoin Discussion     
       Board and Trading Board.
(3). Conduct a personal tutorial or impact your best of knowledge cryptocurrencies especially bitcoin to the interesting
       one like your friend

you use bitcoin, right? then explain to your friend exactly how you have been doing since the first day you met bitcoin until today, if you can still send and receive bitcoin, you can hodl or spend it then explain that to your friend, you don't need to go into more technical details, explains what you've learned since you met bitcoin. a lot of people are not in this market to know about technical details, they are for profit so explain what they want and not what they don't want

Be upfront that there's more than meets the eyes here. Just be frank with him that this is not always an easy path to earn profits. He has to know the truth or else, he will have false expectations in this market. A lot of newcomers will come and check about crypto because they have seen the price level in the recent days. But if the price is going down, they may start thinking again about their involvement. What the OP can do is just be honest about his experiences and share his crypto journey, because for sure, it is not all sunshine and roses.

You should explain how to buy, transfer and store Bitcoin. Also you ought to explain all advantages of Bitcoin over fiat money. Maybe he will get interested in defi-projects or in trading so you can tell him about different ways to make money on this market. But don't forget to warn him about scammers and that he mustn't tell anybody his passwords and seed phrases.

The best option for a newbie is not to rush into the industry. This does not mean not working at all. It is better to start in small steps, so the chances of success are much higher.

I have yet to meet a real-life person who was interested in Bitcoin for anything other than making money the easy way, which is a kind of philosophy that runs through the internet and the stories of those who got rich by investing a few hundred dollars, and today they have millions. I, on the other hand, have made a decision before that I will not help anyone to invest in BTC or any altcoin, until that person understands the basics, and proves that he is capable of being his own bank.

You should do everything possible to prevent anyone in your life from blaming you for anything negative that can happen after a friend or acquaintance invests in cryptocurrencies. The Internet is full of completely free knowledge, and those who are not able to find that knowledge are, in most cases, not ready to possess something as sensitive and volatile as Bitcoin.

Actually there are lots of questions about teaching a beginner to get to know Bitcoin, but before that, he must first know what the purpose of knowing Bitcoin is, whether he wants to invest in Bitcoin or how.

I think if you want to tell a newbie to get to know Bitcoin and you tell him how to transact using Bitcoins to him then you can explain how to store Bitcoins and send Bitcoins and then you explain how to invest with Bitcoin or other like Altcoins. From there he would surely understand how he could learn all that.