One of the cooler things (according to me) is that you now got full support for user handling in Android Lollipop. There’s a guest user as well which is a pretty good way if someone want to borrow your tablet.
You have a main user, but you can create more users and enable guest user. And ALL of this will require Android 5.0 Lollipop (for phone).
- 4 users on phone
- 8 users on tablet
More about users and guests HERE
To switch user you’ve got 3 different ways. In order of accessibility:
From lock screen you tap User icon and select user, if you select Guest you’ll get asked if you want to continue or start over.
Pull down notification field in, works on lock screen as well. Select user icon.
From Settings > Users