It’s really easy:
- Choose a Mastodon server on the Mastodon website ⧉ or through Fedi.Garden ⧉. All the servers listed on those sites have committed to certain standards of reliability and responsible content moderation ⧉.
- Click on the server you want, this will take you to the server’s own website where you can do the actual signing up.
- Once you have signed up, you can log in on that server’s website, or if you prefer you can use a Mastodon app.
Don’t worry too much which server you join, as you can always transfer your account to another server (including your follows and followers).