Pursue a bachelor's degree in your institution's college of arts and sciences or equivalent program.
Major in a liberal arts or science field of study such as political science, music, biology or physics.
Take at least 90 semester hours of classes in liberal arts. Most bachelor degree programs require 120 semester hours for graduation, and three-quarters of your semester hours must be in liberal arts.
Take a variety of classes outside your major to gain a well-rounded education. Be able to demonstrate a solid knowledge of math and proficiency in a foreign language.
Achieve a grade point average (GPA) that puts you in the top 10 percent of your class. Many schools have an actual GPA threshold -- such as 3.75 -- that you must meet to be eligible for a Phi Beta Kappa recommendation.
Demonstrate strong moral character through outside activities that show your leadership skills and integrity.