My native language is Chinese, and fortunately there are no forms for nouns and adjectives referring genders. In a normal conversation, one will not know the gender of who you are talking about unless you clearly mention it (like using Mr, Ms, sister, brother, etc.). Although the written forms of "he" and "she" are slightly different, when pronounced they are exactly the same. However, when I am titled with a "Mr", I always feel something is wrong. Once I was traveling by metro in Nanjing where I took my university study, a little girl said "thank you ma'am" when I gave my seat to her. Her parents felt sorry for that, but in fact I was glad to be referred as a female. Of course the parents only thought I was too polite...