Activate your comlink and use
or
to switch to the leaderboards. There you will find listings of scores and results for all the feats. they are divided into four categories. Performing those feats should be pretty much self explaining and come straight forward as you play the game. It does not matter how high your score on any given feat is, as long as you get a entry. Just check if you have missed any of the feats.
Thanks to
ShadowsofSatan on TrueAchievements.com for pointing out details on the "Endless Runner" feat, which will probably be missed by most persons, myself included.
After you liberated the "Cima Leon Center" base (which is done by finishing the last story mission of act 1 "Missile Cowboy") you will find a soapbox racer right next to the main entry gate. Open the gate, pull the soapbox racer on the edge of the hill and board it. Just keep rolling, the distance does not matter. (I made it 6.5 kilometers, just for the lols ;)
And, as always: Before you downvote this solution, please write down a comment first and tell me what might be the problem. Random downvotes are uncool. Thx.