Huawei NEXUS 6P Quick Start Manual page 36

Guest user
If someone wants to temporarily use your device, but they don't need to
be set up as a regular user, they can use it as a guest. Guest users don't
have access to your mail, your apps, or any content on your phone that's
tied to your account, like photos or downloaded files. You must be the
device's owner to add a guest.
1. Go to Settings
2. Touch Guest.
When your guest is finished using your device, you can switch back to
another user.
To switch to another user: Swipe down from the top of any screen, and
then touch the bar at the top to open Quick Settings. To choose another
user, touch the image in the top right corner of the screen, then touch the
other user's image.
Security
If a lock is set for your screen, the screen goes dark and locks when the
display goes to sleep or you press the Power button.
You can set locks of different strengths using screen lock settings:
1. Go to Settings
2. Touch the type of screen lock you'd like to use.
Even when your screen is locked, you can still perform certain activities.
• Quick Settings: Swipe down from the top of the screen to see Quick
Settings.
• Camera: Swipe from right to left on your screen or swipe away from
the camera icon in the bottom right corner to open the Camera.
• Emergency calls (phones only): Swipe up and touch the word
> Device > Users.
lock.
> Personal > Security > Screen