1) Put some crushed ice into a cocktail shaker, add 100 ml of vodka and 200 ml of grapefruit juice (fresh is best). Shake and pour into a glass, decorate with a grapefruit slice. If you like sweeter drinks use pink grapefruit juice instead.
2) Put some ice into a tall glass (highball) pour in 100 ml vodka, 50 ml lime juice (fresh is best) top with ginger ale, decorate with a lime slice.
3) Put some crushed ice into a cocktail shaker, add 100 ml of vodka, 50 ml of dry vermouth, shake and pour into glass. Optional, decorate with a pearl onion (a type of tree onion which is sweet in flavor).