Sir trust me I complete your work with 100% accuracy. : that which belongs to you —used without a following noun as a pronoun equivalent in meaning to the adjective yourthis book is yours —often used especially with an adverbial modifier in the complimentary close of a letter your truly sincerely yours. The idea that yours needs an apostrophe comes out of the fact that on virtually every other word, 's indicates possession, so English speakers sometimes think yours should be spelled yours. However, this is always incorrect – yours is the only correct spelling. requests a statement about you in general, while 'How about you?' requests a response about your manner, means, or condition." From my point of view, if the difference between what about and how about in general is slight, the difference between what about you and how about you is even slighter.