Outdoor cafes and restaurants are virtually a way of life and extremely important for socializing with friends and beasts. Some friends are invited and some just make their way to your table. You hardly can go wrong, taking in a moment to yourself, a refreshment, a possible bite to eat, and a chance to catch up with your day.
Take a beautiful outdoor cafe, mix in a bit of sunshine and fresh air, add a steaming cup of espresso, and viola, your day is made.
One of the most beautiful and impressive places to sit in a cafe and experience the "cafe life" is on Cours Mirabeau in Aix-en-Provence. It is often called the Avenue des Champs-Elysees of the south. This grand boulevard with its massive plane trees and ancient moss-covered trickling fountains was first laid out in 1651. Nearly 400 years later, it still is a wonderful boulevard to sit at an outdoor cafe, and just experience life. I suggest the famous cafe, Le Deux Garcons towards the top of the grand boulevard.