Go to hangouts.google.com. Select a person from the Hangouts list or search for their name or email address. When you find the person you want to call, click their name. On the top left, click Video call and chose one: Share a meet video call link : A link to the Google Meet video call is added to your chat. Click send to share the link. Open the Phone, Contacts, or FaceTime app and start the FaceTime video call as you usually do. Before the call is picked up by the other person, tap the Portrait mode button from the bottom of the screen. Or, when you are on the call, tap your video thumbnail and then tap the Portrait mode button. Or, open the Control Center during a FaceTime.