You're going to have a hard time if your only reason to join this forum was to make money.
Your best bet would be to sell a certain skill ( programming ) that you have in the service section,
https://bitcointalk.org/index.php?board=52.0Other then that, you could join an altcoin bounty campaign, but that's something i personally wouldn't do.
Or, you could claim bitcoins from faucets,
https://bitcointalk.org/index.php?board=212.0 , depending on how you value your time this could or couldn't be worth it for you.
You can't earn money here just because you want to. This is not just some sort of fastfood job that anyone can join as long as they can talk to people decently. To join signature campaigns here and earn good amounts of cryptocurrencies, you need to have read a lot of stuff beforehand, and actually be active here. As campaign managers definitely do NOT accept newbie accounts.
Hi. Why do you recommend me those things that you wouldn't do yoursef? I want to learn something new to myself and I don't expect that money will fall from the sky right after I joined the forum. But I think those faucets can be useful to me to try. Thank you!
Hello Tiana,
I don't know how to earn money through this forum. You could ask your friend how he does it exactly and then post his methods to this thread. I would be interested.

I will ask him. Let me just some time to understand how everything works here at first

Hello Tiana
I think you can try to join in some bounty campaign if you can get a high rank, so try to get promoted to be member first.
Hi. Could you explain me, plese, what is bounty campaign? Thank you in advance.