Calmy-Rey said in her defence that she was "observing protocol."

The small party picked its way through the middle of the city, observing planetary protocol and never interrupting any creature at its duty.

His brother Rom sat in a corner, observing protocol by not getting within grabbing distance of his brother's heap.

They observed scrupulous protocol with respectful bows.

Pixel has absolutely no patience with people who do not observe correct protocol.

"Please observe protocol at all times, and follow the directions given you as to where and how you may set up your camera."

"Yes, sir," Matt said, observing military protocol while civilians were present.

Normally, you observe protocol to a fault.

Taking care to observe protocol, Jennie replied not to Fisher but to the chair.

Vanqua glanced at Cain but, observing protocol, didn't invite him.