The OP said, "what are some good topics to talk about with people"- not, "what are good topics to talk about on AD?"
Also, you noticed the obnoxious smilie. That was chosen to reflect the fact that I was teasing/joking. Religion and politics aren't a good place to open a conversation with a person.
If you're talking to a stranger, then the weather would be my first thing, or complimenting on their dress/hair-do/shoes....but to my friends, all depends upon what they are interested in, such as their flower/vegetable gardens (if they have one)...kids...local news...crime around the neighborhood, etc., etc.