According to Thorson, women of a certain age are at their beguiling best. ???They???re smart, savvy, and out there in the world.??? So when confidence flags, she recommends the age-old balm of flirting. ???It???s true that size and shape are a part of any first impression,??? she notes. ???But even more important in a woman???s attractiveness is whether she???s awake, alive and engaging.