#forkiverse Welcome y'all! Couple stuff in case you are still sorting things out:

Use hashtags. This network does not have an algorithm, so they are the main way to find content. You can subscribe to them in the client of your choice. Some people of other instances are already giving some advice.

Some random hashtags to start (I used a space so I do not disturb all of the hashtags)

# catsofmastodon - self explanatory
# dogsofmastodon - ditto
# bookstodon and # books - for bookish stuff
# monsterdon - We gather every Sunday night to watch a crappy sci-fi/horror movie. John us!
# getfedihired If you want to signal that you are looking for job.
# mutualaid if you are in a rough patch and need assistance or want to help others in a rough patch (I'd suggest you inform yourself about mutual aid before using it if you are not familiarized with the term).

Speaking about clients and apps: There are many nice and cool apps for Mastodon both in iOS and Android that add functionality (a "for you" page if you need that kind of stuff, etc)

There is an established culture in the fediverse. Please do not feel overwhelmed. We do not expect you will get everything right in day one. Just be open and kind and people will be as well. This is a diverse place. We still have work to do, but there are minorities that see this place as a safe haven for them and their loved ones. If you are a LGTBQ+ person, you may feel comfy here. Speaking about that, this network is extremely involved in the fight against transphobia.

For Mods: Get a good mod list as soon as possible. Will not bore you with the details here, but do some research about it.

Also for Mods: follow the # fediblock hashtag, it is kind of a crowd sourced alert system against instances and users with illegal/racist/bigoted content.

That One Mastodon Joke:

John Mastodon is the creator of Mastodon and the ruler of the Fediverse.

Hope this helped. Happy browsing!