She put the tips of her fingers on my lips.

She put a finger on her lips, and he did likewise.

She put a finger on her lips, telling him to be quiet.

I started to answer, but she stood up and put her finger on my lips.

Before he could say anything, she put a finger on his lips to keep him from speaking.

He put a few drops on her lips and smiled.

Molly wanted to talk, but he put his fingers on her lips.

But she put a finger on his lips, stopping him.

A politician should never put such a question on voters' lips.

Again, she put her finger on my lips, as if to say be still.