Most satellites look like small moving stars, that brighten up and then fade away. There will be no flashing lights like on a plane. They are much higher up. They are best seen when the sun is not far below the horizon, but quite dark. The International Space Station passes over all parts of the world at some stage. It is the brightest of all satellites. Typically it will pass over somewhere regularly for about 10 days, and not be seen again for about 2 months. It takes about an hour and a half to orbit the planet. You will find details on when it can be seen through the links below, by putting in your location. It looks like a bright moving star when it passes overhead, taking a few minutes to travel through the sky.