Campari and soda is a fantastic drink. Refreshing and not super high in alcohol, yet bitter instead of cloying and sweet. For future reference, since it looks like you are not a native English speaker, the phrase for non-Champagne champagne is "sparkling wine."
1. half glass of Campari bitter. 2. Ice 3. orange 4. a shot of water-soda
(never use tonic or white wine, if you like it a bit more alcoholic then use some cava or champagne [sprinkledwine])