She turned in at the gate, walked up to the front door and knocked on it briskly.

He knocked briskly and without waiting for a bidding went in.

Laura all but danced to the door of the inner office, and knocked briskly.

He knocked briskly on the first door but didn't wait for an invitation.

She ignored me and walked away down the street, pausing at the third or fourth door to knock briskly.

Opting for the less delicate approach, Estelle pushed past me and knocked briskly on the bathroom door.

He breathed deeply once, then turned and knocked briskly, opened the door and walked in.

Joe led his colleagues to the door of the Tyrrell House, where he knocked briskly.

Again I felt the urge to rush to Rossi's office door and knock briskly on it.