I start by cleaning code a lot. I've found that often it's better to make the code more legible (indenting, IDE, etc) than just trying to parsing it without.

I start by cleaning code a lot. I've found that often it's better to make the code more legible (indenting, IDE, etc) than just trying to parsing it without. I would say unless the code is already in great shape normally tidying it up a bit means comprehension happens much more quickly.