Scootering can be really fun because there is a reallly fast learning curve and it's fairly cheap.
That being said, learn park etiquette and don't be a cunt waffle.
Your buddy has the skill to do tricks on a scooter, but it takes absolutely zero skill to learn to ride a scooter (which is one of the things that negates any coolness that scooter tricks may gain). This is completely different to skating/skiing, both of which one must learn to ride before throwing tricks. But all said and done, surfing is way harder to learn and will be way better for your balance.
Girl & Chocolate Trailer from Crailtap on Vimeo.