Mix your promotional posts with genuinely useful content - and share other people's content.
Read our introduction to Periscope, Twitter's (awesome) video broadcasting app.
Posting consistently is crucial. By scheduling your posts, you can pump out great content.
It's called 'social' media for a reason: you're supposed to be social.
It's ok to re-post content, especially if you're targetting users in other timezones.
The avatar you use will appear significantly smaller in someone else's feed, so choose sensibly.