You can mix and chill a drink by stirring it with ice cubes. This will keep the drink transparent and clear. You need a mixing glass and a bar spoon (long spoon). Fill the mixing glass with ice cubes and add all the ingredients. Stir gentle until the liquids are properly mixed and chilled. Put a strainer on the mixing glass and strain into a cocktail glass. Normally you make martinis like Dry Martini and Absolut Gibson using this method.