Finding a stylish but unpretentious salon in Atlanta ain't easy. Some spots are so snooty, they may as well have a velvet rope outside. Others start out quiet and cozy, then end up overrun and overbooked. Thankfully, as of this writing, neither scenario could be found at MARIEMARIE HAIR SALON. The new cuttery in Kirkwood owned by pixie-cute Marie Hansen, formerly with Van Michael is tiny, quiet and comfortable. Hansen is the perfect coiffure conversationalist, friendly and nonintimidating, never jabbering on and on while absentmindedly chopping off inch after inch. She's a coloring expert. And instead of giving you the usual noncommittal shrug, she has ideas when you ask, "What do you think I should do with my hair?"