Question: I have started my internship in a Japanese company. It was my first day at work and it was almost time to go home. I wanted to leave a good impression on my Japanese supervisor so I said “Sayoonara” to her as I was preparing to leave. She looked at me in surprise and then she laughed and replied “Ja, mata ashita ne”. I was quite embarrassed. I had the feeling that I said something wrong, but I did not dare to clarify. Was I wrong to say “sayoonara” for “good bye”?