How do I approach the comprehension section?

The most important piece of advice in tackling the comprehension section of the LNAT is 'keep calm and read the question' - it really is that simple. Whilst the examiners do a lot to try and make the section as difficult as possible, at the end of the day it falls down to simply deciding which statements are true and which are false, easy.You have a lot of time in this section, do not waste it. Read the entire passage over once, slowly and try to get a feel for what its overall message is. Then look to the statements: there will be one or two that are clearly false - cross them off. Now go back and read the passage again. Focus on the specific piece of the text the question is alluding to (yes, almost every question does this, try looking at the beginning or the end). This detailed reading will allow you to cross off at least two more statements. Finally look closely at the statements left. They will be very similar indeed, but also clearly different. Look at what specific word makes them different and how this affects the meaning of the entire sentence. Once you have noted the differences in meaning between the two statements, make an informed decision on which one is correct (but don't forget that your gut will almost always give you a strong indication as to which one is correct).