The Geminid meteor show peaks on the 13th December this year at around 20:00GMT. This year should be a good opportunity to see them as the Moon will be out of the way. Expect some bright meteors and the potential of up to 100 meteors an hour.
As the picture shows the meteors will appear to originate from the constellation of Gemini. But it is best to look to the East or West of the radiant. If you look at it the meteor trails will be foreshortened due to perspective so look to the East or West of the constellation to see longer trails.