A PHOTO
Pulling the scroll bar down scrolls the content up. Works both ways.

Pulling the scroll bar down scrolls the content up. Works both ways.

A PHOTO
After selecting shutdown on the Mac, the dialog gives you the option of canceling, if you change your mind.

After selecting shutdown on the Mac, the dialog gives you the option of canceling, if you change your mind.

A PHOTO
When entering your password on lego.com, the password is not displayed in cleartext, but is instead displayed as “••••••••••••” keeping it hidden from people standing behind you.

When entering your password on lego.com, the password is not displayed in cleartext, but is instead displayed as “••••••••••••” keeping it hidden from people standing behind you.

A PHOTO
Mouse pointer on your (virtual) desktop reflects the relative position of the physical hardware mouse on your actual desktop. 
(thanks Moinden)

Mouse pointer on your (virtual) desktop reflects the relative position of the physical hardware mouse on your actual desktop. 

(thanks Moinden)

A PHOTO
In Chrome, the system menus show the keyboard shortcut you can use to activate that menu item.

In Chrome, the system menus show the keyboard shortcut you can use to activate that menu item.

A PHOTO
In Sparrow for Mac, you can press down on the mouse and drag the bottom right corner to change the size of the window.

EDIT: Turns out this is a standard feature of Mac OS X
EDIT 2: Turns out this is a standard feature in all modern operating systems

In Sparrow for Mac, you can press down on the mouse and drag the bottom right corner to change the size of the window.

EDIT: Turns out this is a standard feature of Mac OS X

EDIT 2: Turns out this is a standard feature in all modern operating systems

A PHOTO
When using the help menu in OS X, it helps you.

When using the help menu in OS X, it helps you.

A PHOTO
In Mail.app, there is a “Get Mail” button that when clicked, will get any new mail you have.

In Mail.app, there is a “Get Mail” button that when clicked, will get any new mail you have.

A PHOTO
Twitter sign-in has “Remember Me” checkbox, which will keep you logged in between visits.

Twitter sign-in has “Remember Me” checkbox, which will keep you logged in between visits.

A PHOTO
In Mac OS X, there is a clock at the top right of the screen. It shows you what the current time is (hour and minute), and whether or not it is AM or PM.  

In Mac OS X, there is a clock at the top right of the screen. It shows you what the current time is (hour and minute), and whether or not it is AM or PM.