There are a few ways to mute a contact on Android. The easiest way is to open the contact’s settings and select “mute.” Another way is to open the “settings” app and select “accounts.” There, you can select “mute” for all of your contacts. Finally, you can also mute a contact by selecting it from the list of contacts in the “contact list” or by pressing and holding down on the contact’s name until it turns green.