I actually found that I did better when I would just stop, take a deep breath, and read the entire question through rather than trying to skip around. That's personal preference, though ... it just worked better for me and my reading/comprehension style. And yes, I wasted some time reading one or two questions that had a paragraph of detailed but ultimately irrelevant information, but in my mind I'd rather spend that time than risk missing something because I was trying to apply a test strategy, and since I usually hand plenty of time to spare during my practice exams I knew I could afford to waste a little here and there.
Short answer is go with what works best for you. Try approaching these a few different ways when taking practice exams and see what's most comfortable. The one thing I will suggest is that if you are concerned about time, consider marking these and then skipping over them when you first run into one, then circling back after you've answered all of the remaining questions, much like you would on questions that involve crunching numbers. That way you don't run the risk of missing the chance to answer two or three short questions because you spent too much time on one long one.