Boil sugar and water together, when it starts boiling simmer for 2-3 minutes. Cool, add lemon juice, strain, and store in refrigerator. Instead of 1 teaspoon sugar, use 2 tablespoon syrup. You can concoct innumerable varieties of mocktails if you use a bit of imagination. Use plenty of fresh fruit, tomatoes, and leftover icecreams to the fullest. Mocktails are best made and consumed immediately, since the use of soda with icecream or fruit are best only when just made. If kept for a long its similar to drinking a bottle of cola long after having opened it. The fizz would have gone, so also the taste!!! So just go ahead and cool those parched insides with cool cool mocktails.