Dial A Friend

There on the train, he stood by the door.
With his right index finger, he dialed his friend.
When that didn't work, he used his thumb.
He gave a sigh so I thought he was done.
But then he saw me staring so I threw my gaze on the floor.
Then he looked at his nails just to make sure.
With a flick of his finger, he let it go.
Then reached into his nose and dialed some more.