There are several ways in which American dining customs are different from those in other parts of the world. A guest invited to dinner is【B1】 1to arrive on time. The use of the fork and knife is often different. The fork is used mostly in the left hand. It【B2】 2the food without the help from the knife, which is generally used only to cut meat or potatoes, and is placed to the right of the plate when【B3】 3And while in many places the napkin is put around the neck, here it is put【B4】 4Finally, when Americans eat certain foods, they use their fingers. For example, at【B5】 5they eat chicken, pizza and so on with their hands only. 【B1】