How do I do as many tricks as possible in a row?

Solution 1:

The trick to this challenge (and the ones that follow [30, and 50]), is grinding. You will continually rack up tricks as you grind.

The easiest way to do this in the tutorial is to follow a (somewhat) simple path of rails and walls for you to grind and ride, respectively. You can, with practice, make a continuous loop of the map, without ever really leaving a rail of one type or another. The following YouTube video details the path perfectly. It does take a bit of practice, though. It took me a good fifteen to twenty minutes of completely failing before I finally managed to get it right.