1.   An old man sat on the curb, mumbling and laughing to himself.

2.   In the same way, a Russian might fail to see anything amusing in a joke witch would make an Englishman laugh to tears.

3.   Swarf looked pleased and hobbled around the courtyard, laughing to himself.

4.   Square buses stop by the gate and laugh to themselves.

5.   She laughs to the inky sky.

6.   There I am laughing to myself, I thought you stu, and I was lost, you know!

7.   Billy Joe laughed all the way to the clubhouse.

8.   Bobby laughed all the way to the piggy bank.