so yeah whenever people say hi in public i just assume theyre talking to somebody behind me, and if there arent anyone around i think maybe they were using handsfree, or i just imagined it, and if im completely sure, but i dont know the person i dont say hi back! but yesterday this guy said hi and today he asked why i didnt say hi back and i told him this and he said i should always say hi back, just in case someone thinks im just a b***h, but is this true?
(hes a really nice guy btw, he doesnt mean any harm, just trying to help)