First, adjust the height with the space bar. Next, swing with the left and right keys. Finally, press the space bar to launch it.
The bottom left is your points. The top left is your highest points. I'm not Cloud, so please brag about your scores in the comments. Also, use the left and right keys to adjust your rotation while flying, and land cleanly to get double points! You can also jump backwards! Points are "slightly" inflated. If you'd like more inflation, leave a comment... Yeah...not "slightly"...