Where are the most effective spots to spray cologne. And do y’all spay on clothes or skin?
TL/DR - If you going out, Neck (skin to project) and Shirt (fabric to retain). If you doing anything else, tone it down.
I am going to assume effective means getting the cologne on your person into the nose of an attractive woman. There other reasons to rock cologne, and when you change the reason - effective means something different.
If you spray on skin - the scent will "project" as a function of your body temperature and sweat. (Which is why people recommend the side of your neck, more than your chest - because your neck is warmer and usually more exposed to air - if the goal is to project the scent and get people to notice you)
At the same time, because it's on your warm skin the evaporation will increase, so it should disappear faster. That's basic chemistry/physics.
Incidentally - your nose will get accustomed to most scents - so even if you can't smell it, others can.
Additionally, I'd say when you spray on skin - the perfume mixes with your normal scent - and it becomes
your scent. That may or may not be appealing to you.
If you spray on fabric - the scent will stay much much longer. (if you spray something on and then wear a jacket, good chance you'll smell that cologne on the jacket, well after it evaporates from your skin.) Low key, if you got a woman in your life, sometimes she wants to be up in your shirts and sweaters cause they smell like you (in addition to being warm).
Since the chemicals are no longer right on your skin - less heat from
your skin means less evaporation caused by your body heat. And like I said above, the cologne doesn't mix with your natural essence - so it's just the cologne that people notice.
The flipside to being on fabric, especially in the heat, is that sometimes the scent lasts TOO long and projects TOO strong. That's all social convention. My Middle Eastern people will wear the thickest strongest stuff in the dead of summer and think they killing it.
If you want to max out your scent - I say spray your neck, your chest, front of your shirt, and back of your shirt. (maybe even your sleeves) If you're hitting the club or hitting the opera or something, and you want to get noticed - that's what I would do.
Brother Samuels would do all of the above, heavy spray, but also the back of his hands - so people could smell him cause he talks with his hands a lot.
If you're trying to just do something for your date - chest/shirt. (not the neck, cause broads like to a kiss a neck early in the game)
If you're at work - I'd do the chest OR the shirt, but usually not both. I only want folks up in my personal space to notice, not choke out the quarterly sales meeting.
I tend to wear undershirts - so Monday-Wednesday - I'd spray on skin, then put on the undershirt, then the dress shirt. Cologne is on my skin and pushing out, and bit on my undershirt.
But Thursday/Friday aka happy hour popping - skin AND undershirt AND dress shirt. (3 Layers, vs the 1 muted layer)
If you work from home - you can do what you want - but I find that if I want to wear something more challenging, I don't always put it on my chest - cause the scent gets up in my eyes. If I know I'm gonna be in front of the screeen all day, a spritz on my pants/sleeves.