What other major to compliment Psycology?

<p>I'm a high school senior and need to decide which major well be my second. I eventually want to become a clinical psychologist and get my PhD. My question is what major will help me stand out when I send my graduate application? How can I get research experience in college? Should I suck up to my professors so they give me research opportunities? What will make me stand out for grad school other than Good GPA and test scores? And how can I get those advantages?</p>