It works! I use it in my daily comings and goings when passing/encountering all people, including all people of color and ancestry. It's no big deal. Just be relaxed and have a casual smile and vibe as you pass. It's quite surprising that you often get the same back, although some are a bit surprised before they respond in kind. Sometimes there is even a nod of recognition or even a verbal greeting in passing. Is that so much to ask of decent humans? I think a lot of folks have been willing to do that for quite a while. I worry that some folks have let the current divisiveness in our society turn us backwards and cause people to retract this kind of decency. I plan to keep it up. Don't know what else to do.