This is what you can do, but it would be even better to watch their replay, it would help you more. But I have to say that you'll learn mainly by yourself. I don't find watching replays considerably helpful.Well, its a PSN not gamertag haha, but you can look yourself. Not saying that in a mean way, but on seasonal online events, you can check the world leaderboards and download their ghosts, and follow their lines.