There are different tricks, you can do when riding a skate board like:
360 Varial Kickflip
360 hardflip
360 Inward Heelflip
360 Inward double heelflip
Ollie
The most common and known trick is the Ollie, as listed above. Out of all the other tricks the Ollie is one of the easiest tricks to perform.
Let's go through the different types of Tricks:
The 360 varial kick flip is a little bit difficult to perform but if you want to impress people then you'll want to learn it.