1.   She flipped the lid of the box open and looked inside.

2.   He catches on and rips the box open.

3.   I had her open the box and jiggle the keys while listening long distance to her screams of joy.

4.   Most cockroach traps are rectangular or triangular cardboard boxes open at both ends with the inside surface striped with a very sticky adhesive and food attractant.

5.   Suppose you meet a person and a little dialog box opens up right across his or her chest.

6.   When the correct answer is selected, a little box opens up bearing a cartoon thumbs up, a smiley-face sun or some other encouragement.