How to Right-Click in Mac OS X

OMG
Oh My God !!!
Today I was in one client's home and i was being called for backing up the his air mac data to the external drive and while doing that that guy talk to me in a dominant way that he knows everything and according to his perception i am nothing he says to me there is no right click option on his Mac and start speaking very dominantly saying its not your windows and Nepal and you might not have seen or run the mac ever but its very common to me that every body where ever i have been going there has some problem and as they didn't have any solution and couldn't do by themselves so they are hiring me..i just don't want to speak much with them and i start working and did my task and showed him how could we have right click option and after that also but i just want to show you too if you are also using the mac and not aware still about this. Al last i wanted to say please don't think superior if you have mac  but how couldn't dare that much there lol.. So i decided to write something about it.
Yes far as long as anybody can remember, there used not to be that much Mac in Nepal and we are not being exposed as much we should be as compare to the windows and at that time the Mac mouse has had one button and the PC mouse has had two.
 Why? Apple presumably felt that a one-button mouse was simpler and more efficient, and nearly every other hardware manufacturer thought that more functionality could be crammed into additional mouse buttons.
Battle of the buttons? A standard two-button mouse and the Apple ADB Mouse II.
That is, until Apple released the Magic Mouse - a mouse with four programmable buttons. This was a major milestone for Apple and Mac users everywhere, but truth be told, the Mac OS supported right-clicking for years before that - even back in the days of Mac OS 9!
If you have a Mac, you need to know how to right-click whether you have a two-button mouse or not. We'll show you how.

What Can Right-Clicking Do For Me?

If you have a Mac, and you haven't been right-clicking, you've been missing out on a lot of cool functionality. There are loads of options in the "contextual menus" - menus that appear when you right-click - that you just can't find anywhere else.
Here are some examples:
  • When you're typing an email message in Apple's Mail application and you misspell a word, Mail underlines it in red to indicate that it thinks it's misspelled. But how do you correct it? When you right-click on the misspelled word, Mail provides correct spelling suggestions. Simply select one of the correct spellings to substitute.
  • If you've found a file on the Internet that you want to save to your Mac, you can right-click on the link to save it.
  • There are lots of shortcuts hidden in the Desktop contextual menu. For example, if you'd like to change your desktop, all you have to do is right-click on the Desktop and select Change Desktop Background.

How to Do It

The easiest way to right-click is to hold down the ctrl key before you click your mouse button. This works on any Mac!
But holding down the ctrl key gets old, especially when you're an old-hand at right-clicking. If you're serious about right-clicking, you'll need to get a mouse with more than one mouse button.
All of Apple's new desktop computers (except the Mac mini) ship with the Mighty Mouse. To configure the right mouse button on the Mighty Mouse, select System Preferences from the Apple menu, and then select Keyboard & Mouse. Select the Mouse tab.
Make sure the right mouse button is set as the Secondary Button, as seen in the screenshot above.
If you don't have Apple's Mighty Mouse, you can always pick up an inexpensive, two-button USB mouse at your local electronics store 

For Apple Laptop Owners

If you own a Macbook or Macbook Pro, you can configure your trackpad for right-clicking. (Some older iBooks and Powerbooks also provide this feature.) Simply open the Trackpad options in System Preferences and make sure the Place two fingers on trackpad and click button for secondary click button is checked.
After checking this box, you'll be able to right-click by placing two fingers on the trackpad and clicking. If you have an older Apple portable which doesn't support this feature, you may want to look into iScroll2, a free application that may add this functionality to your trackpad.
(Special thanks to Mr Emannual for this last option also.)
No matter how you decide to right-click, you should definitely start doing it on a regular basis. It'll save you a lot of time!