Captured some nice feelings here Damon...I like the girl in the doorway very much.
When shooting people Ginger I usually try to make eye contact and give them a smile. I don't always talk. It happens that I point my finger to my camera in holding it up, while smiling, so they know that I want to take their picture. If I am not sure about going candid, I rather take no risk in embarrasing people. If in doubt, I might not shoot.
I have found that if your interest in people is genuine, and the smile comes out of your heart, that in many cases they don't object to have their picture taken. Asking can never hurt...