Originally Posted by law dawg

I don't understand this at all.

I can make contact with any citizen at any time. No cause needed.

"How are you doing today?"

I use that one every day. I don't need cause to talk to people. I can start talking to them about anything. If I see something that piques my interest, I can follow that line of questioning if some articulable fact(s) exist which elevate the required suspicion.