Someone new has just entered the room, looking for love.

I got to my feet as he entered the room.

For the first time since she had entered the room, he looked at her with some kind of real interest.

As I entered the room, the two men looked over at me.

She entered the room and turned to close the door.

He entered the room quickly, and came up to the table at which I sat.

Even his wife's face seemed changed as he entered the room.

Before he could answer, two more people entered the room, and everyone's attention turned toward the couple.

He made to get up when I entered the room.

The person had decided not to enter the little room.