Positivity, consistency and vulnerability are key to having more fulfilling friendships, according to founder and CEO of American friend matching agency Girlfriend Circles.com Shasta Nelson, whose book Frientimacy: How to Deepen Friendships for Lifelong Health and Happiness has ideas on how to really connect with our friends. Sashta's previous book was Friendships Don't Just Happen! The Guide to Creating a Meaningful Circle of Girl Friends. And her third book, The Business of Friendship: Making the Most of the Relationships Where We Spend Most of Our Time will be published later this year.