Use "furtive glance" in a sentence

1. He stole a furtive glance at Sweetheart.

2. He cast a furtive glance at her.

3. She cast a furtive glance over her shoulder.

4. The man, having given another quick, furtive glance round, darted to the fence along the Botanical Gardens.

5. I saw him cast a furtive glance at the woman at the table to his right.

6. Down the empty street he hurried, with many a furtive glance to assure himself that he was not being followed.