Take out your best cocktail glass and chill it in the refrigerator. Cocktail tastes best when chilled. Take it out when the sides appear frosted.
Put ice cubes into the glass. Pour in the soda vodka and splash 'over the rocks'' i.e over the ice. There is no order to be followed. whether it is the vodka first or the soda, both will give the same end taste.
Your Rose Kennedy cocktail is ready. For garnishing stick the lemon wedge to the glass sides. If in mood for creativity, peel lemon skin and let it float in the cocktail for a mesmerizing effect. Straws of multiple colors will look good in the cocktail and complete the part feel.