while i am not of the school of thinking, there are gay clubs that will will bar your entrance if you smell of cologne, and many men go on about wanting men to smell like men rather than flowers. i rarely leave the house without a splash of something and unscented deodorant. it can be a bit much if one uses scented shampoo, scented bathsoap, and THEN adds cologne.
This reminds me of the famous t-shirt test which shows that gay men predominantly select gay mens t-shirts on their smell (and not those of straight men, or gay or straight women). Has to do with feromones. So don't overdo with perfume, or you will decrease your attractiveness!