To take a photo on your camera, follow these steps:
Assemble the camera and tripod
More details for this can be found here.
Put the camera down where you want to take a photo. Usually this is in the middle of a room.
Get out of view of the camera so you aren't in the photo. Don't go too far from the camera, or it will disconnect from your phone.
Take a photo. It takes a few seconds for the photo to take.
Check out the video below to see it in action: