Skaters do tricks all the time. Tricks vary from 50-50 grinds to wall rides. Tricks have categories or types. Some are Flatlands, Grabs, Grinds/ Slides, Stalls, and Verts. When a person starts skating it is easier to learn the tricks if the trick is in a category. When your doing some grind and want to move to another grind, It will be easier to understand and learn the second trick because you know the first trick.