Mostly, just enjoy! There are tons of threads here with discussions of fuel economy, things to be aware of or do in order to improve it, etc etc. So I guess after "enjoy", search through here for topics of interest to you. Definitely lots of info on tires, fuel economy, hybrid mode, etc etc etc. Probably easier for you to just poke around yourself than for folks to try to put together an encapsulated version.

Though on the other hand, a FAQ would probably be handy. Reduce the number of repeat threads because it can be a little unclear where to find the specific thing you're looking for sometimes....