Start by reading through the main page. After that, come to the forums and read through the stickies on all of the forum pages. After that, figure out any questions you might have and Search for them (Using the search bar up top).

After that, If you still have questions and you cant find the answers, Ask away.

Thank you for the welcome and for the replies!
What I eat isn't really a factor in it, I just have lacked excersize for a good while.
So I wasn't sure what kind of excersizes would be good for a parkour newcomer to build the muscles needed for the practice.

I will continue with Push-ups and factor squats in, heard they help.
But anything else you would find good for a training regimen will help me on my way.
Thanks guys.

 First I'd like to say, welcome and thanks for joining us!

As for "how to get started" I reccomend starting the APK Workout of the Day (WOD). There is a new workout every weekday that can be found on the main page. It is on the right hand column if you scroll down a little. The warm-up for the workout may is tiring enough that it becomes your workout, but that's ok! You will eventually get it and be building strength in no time!

One you've gained some basic strength, I would then reccomend setting some harder goals so that you have something to work towards.
And I mean basic strength as in you can do the APK warm-up, and it isn't intense enough for it to be your workout.

Good luck!