...Scotch (stay away from blends, true gentleman drink single malt!)
...
do not mix any of these fine whiskies with anything (drink them neat or if you absolutely want to experiment add a single cube of ice) cheers!
Or better yet, stay away from people who tell you how/what you should be drinking. There a lot of great blends out there and a lot of people who get great enjoyment out of mixing things.
A more "gentlemanly" answer would be to try a few sips of any new bottle you buy straight and then with a splash of water so you taste it in its purest form. After that, drink it how "you" like it.