The young man watched her with an odd expression in his eyes.

He was looking at his brother with an odd expression.

She looked at him, an odd expression on her face.

From the odd expression on his face, I could see that was not what he thought at all.

The guard who was doing the talking had an odd expression on his face.

"Why do you look at me with such an odd expression on your face?"

She turned to look at him, with an odd expression on her face.

She was looking into his eyes with an odd expression on her face.

He looked at me, with an odd expression on his face.

He was looking at her with an odd expression that she didn't have the energy to figure out.