An Embarrassing Moment of My Life

I have an embarrassing memory which was brought about by my favorite food — seaweeds.

Japanese people commonly eat seaweed, especially a seaweed product called nori. Nori is sheets of dried seaweed and definitely an essential ingredient to the Japanese cuisine such as sushi and rice balls. I really like its unique flavor and eat them on a daily basis.

Anyway, one day, I went to a popular ramen shop near my flat before my doctor appointment. I ordered ramen and extra nori as I'm very fond of seaweed. After eating tasty ramen, I saw my doctor, but I found that he looked at me somewhat awkwardly.

I wasn't sure what his strange facial expression meant. However, I eventually found the reason when I went to a bathroom and looked at a large mirror: the seaweeds I ate at lunch stuck to my teeth and my face looked like a silly clown. My cheeks burned with embarrassment.

I still like seaweeds, but I've tried to avoid eating nori just before meeting someone.

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Very nicely written; almost perfect!

Be aware that "by the way" indicates that you're diverging from the main topic or making a side note. On the other hand "anyway" indicates that you're going to continue discussing the main topic, so that's what you want to use here.