A few suggestions that helped me are:
1) Get a handheld transceiver and listen to the frequency while beside the runway...this way when people call their downwind, get cleared for landing/take-off ect you can visually see what is happening around the circuit.
2) Get a map while listening in...around my area the controllers say things like "extend your downwind to the river", "turn left at the highway", follow the railroad tracks", ect. Knowing these landmarks seem to help. Realize also the controller has an advantage in that their radar screen shows where everyone is. The pilot is in a better position than the ground observer because he knows where is when he gets an instruction from ATC.
3) While on the ground listen to all calls but when in the air only listen to what is meant for you --- this will reduce the mental workload while flying.
Hope this helps
