Different countries have different customs in giving presents.
In China, you must never give a clock to a Chinese person, because the sound of the word for "clock" is similar to the sound of "death". Also, don't wrap (用……包裹) a present in white, black or blue paper, because they are the colors for funerals (葬礼). Don't give a knife, because something sharp can cut a friendship.
In Russia, if you give flowers as presents, you have to give an odd number of them (one, three, five, etc.) because even numbers of flowers are for funerals.
In Germany, if you are invited to dinner, flowers are good presents to take to your dinner hostess (女主人), but don't take her red roses because it means you are in love with her. Don't take thirteen of anything because it's an unlucky number. Don't take an even number of anything, either. Don't wrap your presents in white, brown, or black paper.
