Another thread brought up the topic of space junk, which reminded me of something we do sometimes after watching the sun set.
Just as the stars begin to show, on a clear night, is a 1-3 hour window of watching the ISS, Hubble telescope, and dozens of other large space objects fly-by when the sun relects off their skins. Its not too hard to see 3-5 objects per hour.
What you are looking for is a light like a star that is moving without any flashing lights of an aircraft.
For a little help, check out www.heavens-above.com
Click on the "change your observing location" link.
Use the search field to input zipcode, town name, etc AND then click on the UPDATE button at the bottom of the page
Your Lat and Lon should appear in the box at the top right corner of the page.
Once thats done, click on the "Daily predictions for brighter satellites" link.
This produces a list of objects and times visible.
The easiest to see are the when "Highest Point Altitude" comes close to your Latitude at the time listed.