as boring and tedious as air law can be, i think the best way to approach it is to force yourself to develop a genuine interest in it. As P/UT we tend to just rely on the instructor knowing the laws, but put yourself in the position of PIC flying cross-country, you will WANT to know exactly what you are and aren't allowed to do, otherwise its you who takes the heat. You'll remember and understand things much better than if youre just trying to memorise terms and definitions for a test.