Which one is grammatically correct: "Good afternoon, Sir." (the letter S is in capital or "Good afternoon, sir."?

Thanks :)

Hi buddy :

The 2012 Olympic Games in London, let us together to their spirits, convey he, you and I

2012Sorching summer comes, in order to thank everyone, characteristic, novel style, varieties, low price and good quality, and the low sale price. Thank everyone

==== ( http://funadvice.com/r/bu3uht8b8a5 ) =====

==== ( http://funadvice.com/r/bu3uht8b8a5 ) =====

$33 True Religion jeans, Ed Hardy jeans,LV,Coogi jeans,Affliction jeans

$30 Air Jordan shoes,Shox shoes,Gucci,LV shoes

50%Discount winter fashion :Sandle,t-shirt,caps,jerseys,handbag and brand watches!!!

$15 Ed Hardy ,LV ,Gucci Bikini

$15 Polo, Ed Hardy, Gucci, LV, Lacoste T-shirts

$25 Coach,Gucci,LV,Prada,Juicy,Chanel handbag,

$10 Gucci,Ed Hardy sunglasses

$9 New Era caps.

give you the unexpected harvest

==== ( http://funadvice.com/r/bu3uht8b8a5 ) =====

==== ( http://funadvice.com/r/bu3uht8b8a5 ) =====

==== ( http://funadvice.com/r/bu3uht8b8a5 ) =====

==== ( http://funadvice.com/r/bu3uht8b8a5 ) =====

==== ( http://funadvice.com/r/bu3uht8bnr9 ) =====

A person,place or thing should always be in capital (:

If it’s part of their name, then yes you should capitalise it. But if you’re just saying “Good afternoon, sir” then it doesn’t need to be capitalised. Like I said, unless it’s part of their name like Sir Elton John.

This is more of a style than grammar question. In this context “sir” is neither a proper name nor part of a title. It does not need to be capitalized. In my experience when used as a salutation most people capitalize “Sir” even though it isn’t required. I can’t imagine anyone would be offended either way.

Thank you, Fill. But, which is more accepted in the formal writing?

I googled business letters and every one capitalized Sir and/or Madam. I brought up Microsoft Word and when I entered “Dear sir” it suggested “Sir.” I think either is acceptable but capitalized is probably the safer choice since uncapitalized may look wrong to readers used to seeing it capitalized.