Once you've joined or started a Zoom meeting in a Zoom room, there are a few extra options for the view and camera. First, you should make sure the mic is unmuted and the camera is enabled; those buttons shouldn't be filled and should say Mute and Stop video, respectively, like so:

If you'd like, you can tap the View button to adjust the arrangement of the screen. We recommend Gallery view for any call with more than two people:

Finally, you can tap Camera Control to zoom in or point the camera around for a better view. You can also set it to Speaker Focus mode, and the camera will attempt to zoom in on whoever's talking.