group facetime
How do you turn on you camera, on there, i've tried turining it on when you click the two dots and it won't let me click the camera, please help I have a iphone 6s.
Are you certain it's an iPhone 6S? Check Settings > General > About > Model and report the result here.
Are you using iOS 12.1 or later? That is required.
Use Group FaceTime on your iPhone, iPad, and iPod touch - Apple Support