What should you read on an oupatient block? Nothing.
Outpatient blocks are a gift from the residency fairy. Since you got hosed and have this one first (instead of in February when you'll probably be thinking about jumping off the roof of your hospital if you have to admit one more damn COPD exacerbation), you should make the most of it and slack as much as humanly possible...it's your last chance.
If you can somehow register for and take Step 3 before the end of the block then perhaps you should read a little (very little) for that, otherwise I recommend, The New Yorker, Maxim, Vogue, Weekly World News, whatever floats your boat.