4. Use everything you've got going for you. If you've got skills, show them off!
If you want to shoot on the latest and greatest camera or edit all your special fx in after effects then go for it, don't let us get into your way.
Equally, if you are a Vine pro then that is great too! We always like a mixture.
Think about lighting, stability, shot sizes, etc... For most of you it'll come naturally but there's nothing wrong with a bit of a reminder!