I've visited Scotch disilleries and they will all tell you to enjoy Scotch however you like, and that adding water can indeed open up the flavor and aroma. They

I've visited Scotch disilleries and they will all tell you to enjoy Scotch however you like, and that adding water can indeed open up the flavor and aroma. They encouraged you to try it! One person did caution about putting ice in your spirits since very cold liquids could numb or mute your tastebud sensitivity a bit.