Or add events you know about to pass on to your followers. (Note the various privacy level options, and you can choose different levels for different events). This way, you help others discover great events.
For federation, follows and approvals are passed between servers and public events are federated between servers running our software. Over time, we hope to use #ActivityPub fully to trade data with other event software.
And some things we didn't mention! Many rough edges and a lot to do, but if you are interested or just want to let us know what you think of the idea get in touch. There is more on our website: https://www.theoccasionoctopus.net/
We are about event discovery and don't try to take over an events existing ticket system, sign ups, etc ... instead we direct people straight back to the original home of the event online.