Increasing your activity on Twitter with respect to hive means you are promoting hive on Twitter everyday. This is one way to get known on this blockchain from my experience.
You could check out @nathanmars's post to know more about hive 5 movement.
Or you could simply search the Hashtag #hive on Twitter and see what people are doing there.

@3speaksonline can be likened to YouTube of the conventional social media without censorship.
3speaks is video section of hive basically. Although you don't need 1000 subscribers to start earning. If you like doing videos you can take advantage of this platform

@stemsocial posts are science related post. They are a community on hive with the aim of supporting science related post. If you have passIon for science you can leverage on it too. However they have a lot of criteria.

I hope this helps.

You seem to be a newbie on this platform, you could check my previous post to check out the newbie guides.

Thank you for stopping by.