GGrimes is a user on octodon.social. You can follow them or interact with them if you have an account anywhere in the fediverse.
If you don't, you can sign up here.
@GGrimes Here are some things you can do:
Search for hashtags of things you are interested in.
Pin columns of hashtags you are especially interested in, such as #linux, by clicking the hashtag, and then clicking the three horizontal lines with dots.
Send out an introductory toot that includes the hashtag #introductions plus all the things you are interested in, like #cats #mathematics #chocolate #gardening #amwriting #amreading #mastoart
@GGrimes It's OK. Just post an #introduction, tell us a bit about yourself, and be sociable. The Fediverse is what you make it.
@GGrimes That has got to be the best first toot I have ever seen! Welcome!