When in London, do as the londoners and enjoy your gin and tonic.
Here is my favorite why to drink it:
4 cl of Hendricks
A small bottle of St. Pellegrino tonic
(when in Norway, buy it at Skafferiet in Oslo)
2 slices of cucumber
I prefer my gin&tonic in a large wine glass
Make sure you have enough ice cubes, pour in the gin and garnish with cucumber and pepper.
Then pour in the tonic - enjoy.
Perfect for a hot summer night.