1.   He looked at Sarah, a big grin on his face.

2.   He walked towards me with a big grin.

3.   Karen looks back and flashes a big grin.

4.   She had a big grin on her face.

5.   She came out of his office with a big grin on her face.

6.   And the big grin was back with a vengeance.

7.   Arms tossed around each other, big grins.

8.   Asked about the new ambassador, Ortega, who rarely smiles, got a big grin across his face.

9.   A big grin.

10.   A big grin crossed his face.