In case you're not sure about a "buffet."
Usually in a restaurant, you sit at your table and order food, and the waiter brings it to your table.
At a buffet, you serve yourself. The buffet is a big table with dozens of kinds of food on it, and a stack of clean plates at one end.
You get up from your table.
You walk to the buffet.
You take a clean plate.
You choose the foods you want, and put them on the plate yourself.
"Buffet" is an English word borrowed from French, and it is pronounced "buff-FAY."