The Perseid meteor shower will be happening Tuesday night 11 Aug and Wednesday night 12 Aug. The actual, theoretical shower peak is Wednesday 12 Aug at 14:00 EDT. Conditions aren't ideal since the moon will be a waning gibbous.
Information is here at Sky and Telescope.
Here's a general observing guide at Sky and Telescope.
The main thing is to go outside, in the darkest location possible, lie on the flattest thing you can lie on (lawn chair, adirondack chair, ground) and watch the sky, the whole sky or as much as possible. The shower will be best after midnight or 1:00 or 2:00 in the morning, when we are on the side of the earth encountering the meteors head-on.