To view the ISS as it passes overhead -

I just went to the Heavens-Above website:

http://www.heavens-above.com/?lat=43.83453&lng=-68.55469&loc=Unspecified&alt=0&tz=CET

to look for predicted times when the ISS can be viewed from where we live.

Is there anyone familiar with this who can explain to those interested how they can plan to look up in the sky and see the ISS when it passes overhead? I'm sure there are other websites that give this information as well.

If you know where in the sky to look and when to look it is quite visible and awe inspiring!