Year-end parties

During December in Japan, many companies or groups have parties at the end of the year. I had 3 different class parties this year. This first one was with my community class:
The second was with my class at Yamaha music:
We enjoyed copying part of the following video that shows incorrect cultural tips for eating sushi in Japan. We always said "Maa maa maa maa" & "Oh toh toh toh" when pouring and receiving drinks. (^-^)

The last group I went out with was my Roland class: