First slice half a lemon in small slices.
Then some ice, I prefer alot of ice in this drink.
Pour the vodka in, press the rest of the lemon in the glass.
Mix around and then fill up with Schweppes lemon.
Mix again and you're finished.
If you don't got the Schweppes lemon you can always use Fanta lemon instead, but it will be a lot sweeter.