Annabelle, I know, question 2 is indeed a challenge for many bilinguals. Saying “hello” or “goodbye” are great options for introverts, thank you. You say that bilinguals are not per se “great translators”, and I agree. But they have access to two or more language systems and it makes it easier for them to translate spontaneously compared to someone who doesn’t know one of the languages. I remember that my parents would rather ask me and my sister than look up a word in the dictionary. I used to reply that I’m not a “walking dictionary”, but I now notice that I’m doing the same thing with my children who, funnily, like it. They often discuss about nuances and synonyms, trying to find out which translation fits better. But you’re right. Introverts may not like this kind of question and I think they would be entitled to refuse to answer. – Thanks for pointing this out!