Hello there mate! I asked the same question when I was new as well. So understand how it feels not knowing where to start, so let me help you. You can check these child boards and you can see many ICO or campaigns going on, you just need to choose which campaign you'd like to participate in.
https://bitcointalk.org/index.php?board=198.0https://bitcointalk.org/index.php?board=52.0https://bitcointalk.org/index.php?board=238.0https://bitcointalk.org/index.php?board=84.0Check these links I provided and you should be able to see on the titles Bounty/Campaign, but take note not all ICO's accept Newbie accounts so I suggest you rank up first to at least Jr. Member since there are campaigns that allows you to join as a Jr. Member. But don't be dismayed, there are many campaigns which accepts Newbies too. Just check their rules/requirements and if you meet those, then you're good to go. Just a heads up too, make sure you join a legit campaign/bounty since there are scams as well. So to avoid this, do some research on the group/company you're joining, you can check their website if they have one, check their whitepaper and so on. Since you're new, it's really important to explore and learn first. There are plenty of reading materials on the forum so take your time in going through it.
One more thing, if you want to rank up fast, then just be active and make sure to avoid posting stuff like this one. No offense but they're strict now with the shitposting. Make sure you put a lot of thought and content in your posts/comments and the title is important as well. So once you get the hang of it, everything will be easy peasy
Anyway, good luck and hope this helped you.