As an alien whose first language is not English, I sometimes am in a very strange situation, is it suitable to use my native language name, Dong? I by chance know Dong has a little bit negative meaning in English. Though I could choose an English name, such as Tom, to use, but I still prefer to use my native name. Any recommendation? Thanks.
Speaking for the USA only, both the names "Dick" and "Dong" are also slang words for penis. Nonetheless, many people such as former vice president Dick Cheney go by the name "Dick". "Dong" on the other hand is a rare name here. There is a professor Dong Liu at University of Houston, professor Dong Lai at Cornell, and other professors with "Dong" as their first or last name.
Unfortunately as Kat Chow discusses in her article What's So 'Cringeworthy' About Long Duk Dong in 'Sixteen Candles'?, there is a negative stereotype of Chinese immigrants and visitors established by the Dong character in this famous movie.
The movie is rather old now, but still worth being aware of.
Overall, I would just stick with your real name.