Fruit Juice Fizzies

Ingredients:

Fruit juice(s) (pick your favorite flavor or combine several; the only thing I’ve found that doesn’t seem to work is lemonade)
Carbondated water (I use Nałęczowianka carbonated mineral water from the local international grocery; they sell it in six packs of good-sized bottles)
Lime juice (optional)

1. Pour about two inches of fruit juice into the bottom of the glass.
2. Pour in carbondated water to maximum fill point.
3. For extra fizz or added tartness, put in a dash of lime juice.
4. Enjoy.