1.   Britta gave him a conspiratorial smile.

2.   Britta gave him a curiously conspiratorial smile.

3.   She gave me a conspiratorial smile across the table.

4.   Athelstan noticed the conspiratorial smiles the two lovers exchanged.

5.   Back in the afternoon sunshine, Shawn stops, a conspiratorial smile crossing his face.

6.   Then suddenly she flashed a conspiratorial smile.

7.   You and I gave each other conspiratorial smiles.