You talk first? I talk first?

Say you got a buddy helping you bleed brakes. Who does the talking? Is it the guy in the driver’s seat, telling when he’s pressing, holding, and releasing the brake pedal? Or should it be the guy at the caliper/wheel cylinder saying when to press, hold, release?

I’ve done it both ways, but I’m usually the one to dictate the process, whether I’m in the seat or at the bleeder. I haven’t quite figured out what’s the ideal method. What’s your preferred technique?