I keep my finger on the left button. To single click I gently press down and then release the mouse button.
To double click, I quickly press the button twice in a row. I keep my finger resting on the button, I do not take my finger off while double clicking. I've seen people raise their finger up to click or double click. For clicking that works, but for double clicking it is easier to leave your finger on the button and press down twice.
To drag, I press the mouse button down, and keep it down. Then I move the mouse. In some programs you drag and drop items. You first click on the object you want to drag, hold the mouse button down, and then drag the object to some location. Now you release the mouse button and the object is in a new location.
Practice movement, Single clicking, and double clicking
Make sure your mouse pointer is inside the applet for things to work.
Please wait for the applet to load some images. The box above will turn yellow when it's finished.
You can practice single clicking and double clicking the left or right button on your mouse.
When you single click or hold down the button on your mouse, the same button will light up on the screen.
If you double click a button, it will light up with a picture of a butterfly. To double click, lightly press the button twice quickly.
You can practice moving your mouse, by moving it inside and outside the applet to have the picture of the mouse appear or disappear.
NOTE: Java has no way of detecting both buttons being down.
Click on the red box and hold down the mouse button. Now drag the mouse in any direction. You will see that the box will move with you. When you release the mouse button, the box is where you left it. If you need to reset the box, click the applet and then press the R key on your keyboard.