on treadmill

run for 1 hour on treadmill. treadmill is boring. I wonder where shall i look at when i am running on the machine. Today, i used machine #3, where i could see a bird nest. I stared at the nest for 1 hours. during that time, a few birds visited and left. the lady next me was reading a magazine, while running. seems good idea, but I'm not that adroit. it will make me puke in the end.