?

Maybe we’re just talking about the movies though, given the image. Even if not, the orc image here could be uruk hai if they wanted to be more specific of the larger orc breed. So image is weird either way

Someone with headphones on does not necessarily mean they wouldn’t want to chat. And a wave doesn’t necessarily mean the waver wants to chat either (I don’t mean waving right next to someone to get their attention)

If someone has headphones on, you can wave, and if they take them off then greet them. If they have no headphones in, you can just greet them

Why socialise?