What To Do If You’re Concerned About A Homeless Person Sleeping In Your Doorway

Many cities have outreach numbers you can call if you see someone in need (311 in San Francisco).
But please, remember to treat everyone you may come across with dignity and respect. Smile and ask if there is anything you can do for someone, or just say "Hello."

http://sanfrancisco.cbslocal.com/2015/03/18/what-to-do-if-youre-concerned-about-a-homeless-person-sleeping-in-your-doorway/