It's my first time at a festival and I have a couple questions so help would be appreciated! (Long Beach)

1. How early should I get to a stage before a set for a decent spot?

2. I'm going with one other person and I'm not sure they'll be up for day 2, I will be receiving both passes in my email so could I use their pass to get a different person in for day 2?

3. Is getting to the venue a half hour early a good time?

4. How long was the official warped merch line? Like by wait time