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.
Don't go crazy with your username. If it's too long you'll find it may stop people tagging you.
A brand is no longer what we tell the consumer it is. It’s what consumers tell each other it is. – Scott Cook, Intuit Co-founder