The Azerbaijani wedding tradition (Azerbaijani: Azərbaycanın toy adətləri) is one of the most significant and solemn family traditions of the Azerbaijani people, a Turkic people, both in Azerbaijan Republic and Iranian Azerbaijan and it is very similar to Turkish marriage and Persian marriage.

When families are matchmaking, the tea tray gives a good indication of how arrangements are progressing. If it’s served without sugar, more negotiating needs to be done; if it’s sweet, a wedding is definitely on the cards.

Source: https://en.wikipedia.org/wiki/Wedding_tradition_in_Azerbaijan, http://www.telegraph.co.uk/travel/destinations/asia/azerbaijan/articles/things-you-didnt-know-about-azerbaijan/