Some thoughts on engagement on this site:

1) If you like something, like it—click that star. Just do it!

2) If you think others would like what you like, find interesting what you find interesting, etc., boost it—click that little two arrow thing. Just do it!

3) If you have a comment then add your comment—click that bent arrow thing (or thought bubble thing?) and write something. Just do it!

4) Share a lot of your own stuff: Ideas, observations, experiences, media, art, etc. Just do it!