Manual - aka a wheelie. Rolling on the back two wheels of the skateboard. A fun trick that requires a lot of balance. Hold the manual as long as you can.
You don't need to do a manny for a long distance. I struggle with that. Getting them so you can do it for a few feet is great. It will help your balance. It will also make it easier for you to land tricks when the time comes.
I try to set a distance in my head. Get the wheels up, hold, and put them down just where I planned. That is a fun little move.
This trick is all about balance. You need to roll and hold the front wheels off the ground. Don't let the tail touch either.
The tail can touch and drag as you are rolling. Try not to do this. It will wear down the kick on your skateboard deck. That will kill the pop. The pop comes in handy if you start doing ollie tricks.
For the more advanced try an ollie into a manual and pop out. Do this up a curb or pad you can ollie up hold the trick until the end and pop off.
Try and put a little ollie into it on the way out.
To practice. Make markers and try to do a manual from one to the next. Get some speed and try to hold for the width between the lines of a parking space.