He expected her to lower the gun, but she didn't.
He seemed to lower his gun an inch or so.
She lowered the gun to her side, still saying nothing.
He lowered the gun and sat, his back against the wall of the house.
Then he lowered his gun, turned and walked out of the room.
Finally she lowered the gun and then let it fall to the ground.
The man lowered the gun but didn't put it away.
He lowered the gun but kept it in his hand.
His wife lowered the gun and put the safety on.
She stood still for a moment, then slowly lowered the gun.