questions about beta

here's a list of questions
1. Do you just get every item or do you just play the game normally?
2. Do you automatically get a high level character or again you just play the game normally?
3. Is there anything you aren't allowed to do in beta like show others what's coming up and stuff like that?
4. Is there anything to look out for? (announcements stuff like that)

1) Normally
2) Normally
3) As far as we've seen, no. GGG pretty much encourages streamers to show it.
4) Dunno other than knowing the beta comes halfway through Legacy roughly.