This well-known cheer is a form of call and response. Call and response is a musical form in which a melody is stated in a phrase that is then followed by a second phrase that completes the idea. The first phrase is presented like a question, prompting the second phrase - the reply.
The best way to shoot a picture would be to have it center screen. You can look through your viewer as well as long as your subject is the main focus in the middle.
