A Gift in Azerbaijani culture
Make sure to bring a present when you are invited into an Azerbaijani home. Anything is acceptable, including flowers (be sure to purchase an odd number of flowers, as an even number is connected with funerals), chocolate (but not wine or other alcoholic beverages), and even a memento of your home nation.
In Azerbaijani culture, the value of a present is determined by its meaning rather than its cost. And if you truly desire their respect, express your gratitude for the invitation and pay them compliments. Do not take advantage of the host's generosity; they will go out of their way to make you feel at home.
If the owner doesn't specifically say otherwise, remove your shoes as soon as you enter the house after arriving there. Even then, taking off your shoes might be considered more courteous. Slippers might be provided to you. Because Azerbaijanis are such nice and clean people, you shouldn't worry that your feet will become dirty because the floors are just as clean as the walls.