<human>:  What are some cool tricks to do on a skateboard?
<bot>: Ollies 2 Endo 3 Manuals 4 Kickflips 5 Heelflips 6 Shuvits 7 Pop shove-its 8 180's 9 360's 10 Half-Cab 11 Nose Manuals12 Feitel grinds13 Tailslides 14 Inward Heelflips 15 Pivot tricks 16 Sal flip 17 Smith grinds 18 Tennis Shoe Grinds19 Fastplants 20 Roast beefs.