A quick explainer about the Mastodon like (called "favourite" - it's the star). It is a personal message to the writer of the post that you liked it, and it doesn't show on anyone's time line.
If you want to spread the post, that's the boost button. The equivalent of a Twitter like is to do both a favourite and a boost.
If you think this post is useful to you click "favourite". If you think it would be useful for others too, click "boost" as well.
Edited for accuracy.
