How to use a mouse

The Times has posted a timeline of Steve Jobs' reign at Apple, as part of their coverage of his leave of absence. It has a link to their original review of the first Macintosh. Being the first mainstream computer to use a mouse, the January 24, 1984 column contains the following passage:

You find either a word or an icon or pictogram on the screen representing what you want the computer to do, then slide the mouse on your desk to move the cursor into position over that screen object, then press the button on the mouse to activate that particular part of the program."

Sounds kind of difficult.