If you're in a meeting and you forgot to put your phone in silent mode. It can be seen as rude to look at your phone while you're talking to a person. So let's set up a Tasker profile where your phone goes into silent mode when it's upside down.
How to unlock your phone with Tasker without root! Make sure you have trusted device or place to bypass the Pin/Password. This works perfectly when the Unlock Screen from Autoinput doesn't work or Pin/Password in Secure Settings.