I do all the time. Don't care where I am. If people don't want to reciprocate then that's up to them, doesn't stop me. Except at work, there are some miserable twohats who just don't even look you in the eye as you pass in the corridors, they look at floors or walls, miserable fookin weirdos, they go on my mental checklist of people not to bother with.
That one confused people - Maybe it's a Barnsley thing. You say orright, and it baffles some people into what to respond with "I'm ok thanks", "yes", or, as I do, "oright" back at them.