"A good way to take up more space, is with perfume" - Andy Warhol
  
The  right cologne is a chemical reaction, from the time you splash or  spritz it, to how it begins to gently react with the oils and pH of your  skin, and eventually how a woman reacts to it. But this chain of  chemical events begins much before, when you actually decide to buy  cologne for yourself.
It's cologne, not a combIt  doesn't begin with the ride to the mall. Or even the lingering echo of  the cologne you used to wear. None of that. It begins with your wallet.  How much money you are willing to spend on smelling good. Go to the  mall. Not the local gift store, where you can get ripped off with  counterfeits, or disappointed with limited choice. And they won't get  cranky if you take your time - which you should.
Skin DeepFor  those who for some reason apply cologne to their clothes - don't. It  will stain your clothes and wear off faster. And unlike cloth, skin deep  can be oily or dry, which affects how cologne performs on it. Dry skin  doesn't have moisture to lock in the cologne, whereas oily skin has  affinity for the epidermal oil - just wear moisturizer beforehand.
Location, location, location...Have  money? Pick two colognes. There is usually a difference between  colognes for day and nightwear. For the day, wear something crisp and  cool. In a hurry? Pick up any of the 'sport' fragrances, which have a  hint of spice. For the darker time of day, opt for the classics -  something spicy, woody, and warm, yet subtle. If you can afford it, you  can't afford to smell like your deodorant (not that day fragrances are  deodorants, but it’s just an analogy), and how you want to smell for  your girlfriend shouldn’t be how you want to smell with your coworkers.
SeasonYou  sweat more in summer, and your pulse points can radiate off the  cologne, atom by atom into the air. So wear light 'summery' scents, but  avoid anything fruity, unless it's a subtle hint in a medley of more  meaningful hints (like pine, woods, even tobacco)  Vice versa for winter  – you're covered up, and your skin is less oily - so wear stronger  fragrances.
At the mallBefore  you blurt out how much you plan to spend, be nice to the saleslady - a  woman's opinion is good to have.  Better is to take a woman along. Now  get specific - state how much you’re willing to spend.
Don't  immediately spray yourself with whatever you are offered. Reputed stores  have blotter paper, or cards to spray the fragrances. Quickly eliminate  the ones you don't like. Since all this smelling soon undermines your  smell accuracy, have coffee beans or a cup of hot coffee nearby, which  immediately refreshes your sense of smell.
Notes  A fragrance has 3 notes - the top, the middle and the base notes. The  top note is your initial impression of the fragrance, the middle notes  is the lasting impression – it stays a few hours, before fading away  into the base note. It is advisable to spray a perfume on a few cards,  and walk around with them. If you are stuck with four - six fragrances,  spray one on each hand (remember which hand!), walk around and come back  in 15 minutes - when the middle notes have begun playing out, and  eliminate. After narrowing it down to maybe four colognes, buy samplers.  Take them home; try each out for at least a day - buy the bottle once  upon finalizing.
While buying the Bottle  If the box in which you get the bottle feels a bit soft, have it  replaced - it's been handled too often. Ditto for a box with faded  colours (it's been exposed to the sun, or UV light) or not packaged in  shrink-wrapped plastic (it might have been returned by someone). If you  can’t get a replacement, remember the name – you can buy it elsewhere -  and leave.
An advisory on how to select and buy the right cologne or fragrance for men. The right cologne is a fragrance for men.