I peered over my shoulder back down at the ground, but could see nothing.

He was standing behind me again, peering over my shoulder.

Or the simple matter of someone peering over his shoulder?

I walked around the table and peered over his shoulder.

I was not going to peer over the top of those rocks.

I stood up and tried to peer over heads at the other side of the street.

I peered over her shoulder at the photo and had to agree.

He peered at me over the top of the paper when I walked in.

He turned back to the window and peered over the western wall again.

After a time, he comes to peer over my shoulder.