The happiest most content person I have seen in the past year in bay area, is a homeless man who resides on the pedestrian area near Starbucks by my house. He never asks for money, only for food and only if he hasn't eaten yet. He complements people on their outfits, smiles and once when I was on the phone with my earphones on, he said: "I'm sure everything will go well" (assuming I'm having a business call I suppose). When I walked by today, he said "happy friday!" I said to you too.. thinking why does it even matter to him what day it is..