It was an interesting match to watch.
You tend to double peek on T side looking down towards mid doors. The other team will most likely have an AWP pointed at you so it's never a good idea to peek out with an AUG in the hopes of getting a kill. The AWP is a one shot one kill even if they clip you in the elbow, so when faced with one rather find another way to their side and surprise them. You will pick up plenty of hints along the way, but peeking is always a bugger that I too struggled to adapt to at first
Also, try not to shoot your teammates when they come down long towards Bombsite A