Spock folded his hands behind his back, warming up for full lecture mode.

I expressed some surprise at this, and Suzie immediately went into lecture mode again.

Heisenberg, still in lecture mode, concluded his talk.

"I fall into lecture mode pretty easy," I said.

She wondered if Rafe knew how irritating he was when he went into his lecture mode.

I could hear her switching into lecture mode.

You were the closest to her, apprentice, Aahz said, his voice stern and in lecture mode.

He went into lecture mode, heedless of the consequences.

He was beginning to sound like one of the professors he had at the Academy, droning on in full lecture mode.

Albert shook his pipe at me, back in the lecture mode.