Soo... any experienced PSAT takers who can give a sophmore some advice on the test?

Although taking the PSAT this year will not qualify at all for the National Merit Scholarship, I think it would be a good practice to see what the actual test is like. I already bought a Barron's PSAT book to help me study for it. I'm just asking for any other additional tips that helped you significantly or areas of the test to look out for. Any suggestions would be great! Thank you!