Reminds me of the wikitravel article on Azerbaijan:
Don't smile at an Azerbaijani in the street, because if you do they most likely will not respond in kind and they will regard you as odd. Smiling in Azerbaijan in public is not done and will be considered inappropriate. Smiling is traditionally reserved for family and friends; smiling at a stranger without addressing them, will be considered offensive, as they will either think that you are making fun of them and there is something wrong with their clothes or hair. Furthermore, an automatic "Western smile" (ie grinning) is widely regarded as insincere, as in "You don't really mean it". [1]
Don't smile at an Azerbaijani in the street, because if you do they most likely will not respond in kind and they will regard you as odd. Smiling in Azerbaijan in public is not done and will be considered inappropriate. Smiling is traditionally reserved for family and friends; smiling at a stranger without addressing them, will be considered offensive, as they will either think that you are making fun of them and there is something wrong with their clothes or hair. Furthermore, an automatic "Western smile" (ie grinning) is widely regarded as insincere, as in "You don't really mean it". [1]
[1] http://wikitravel.org/en/Azerbaijan#Other_things_to_watch_fo...