Native English and native Bulgarian speaker. Also, fluent in Italian. I know a lot about different cultures, trust me about this. I am also young and, having learned 6 foreign languages, I do know what an exercise might be missing and how it can get more entertaining.
As an aspiring author, I will have no problems creating your short, humorous dialogues. Also, I have finished a course that is entirely about intercultural differences and the thesis I wrote was about similar confrontations of foreigners and native speakers of the given language.
Sincerely yours,
AN J.