While kissing? (the nose)?

When kissing on the lips, obviously yr noses need to be next to each other. Does it matter if the sides of yr noses are touching or not? Or, just how ever it lands? It prolly dont matter, but what do you like best? Is it better for the guy to be clean shaven, is a 5 o'clock shadow too prickly? 1 more thing, is it important for the noses to be smooth? having dry skin cant be good. Some of you will make fun of me, whatever. Answer if you want to help.