Here is my guide post to Using Finger Gestures on HTC HD 2 Phone. The touch screen of your phone is built for pure finger touch control. Use finger gestures to scroll, pan, and zoom in and out of the screen.
Finger scrolling can be used to scroll up and down Web pages, documents, and lists such as the contacts list, file list, message list, calendar appointments list, and more.
To scroll up and down
To scroll down, swipe your finger upward on the touch screen.
To scroll up, swipe your finger downward on the touch screen.
To auto-scroll, flick your finger upward or downward on the touch screen. Tap the screen to stop scrolling.
To scroll left and right
To scroll towards the right, swipe your finger to the left.
To scroll towards the left, swipe your finger to the right.
To auto-scroll, flick your finger left or right. Tap the screen to stop scrolling.
You can use finger panning to move to and view other parts of a zoomed photo, Web page, document, or an email. To pan, press and hold on the touch screen and then drag your finger in any direction.
When you are viewing Web pages, photos, messages, or documents, zoom in and out freely with just a simple pinch of your fingers. Using your thumb and index finger, press on the touch screen and spread your fingers apart to zoom in. Pinch your fingers together to zoom out.
On certain screens wherein some onscreen controls or icons appear small and hard to tap on, you can also use pinch zooming to zoom in and out. After zooming in, the onscreen control or icon becomes larger and you can easily tap it with your finger. You will also see a small preview window, and you can drag your finger around this window to pan around the zoomed screen.