Shin Megami Tensei: Persona 4/Stats

There are five important character statistics in Persona 4:
 * 1) Understanding
 * 2) Knowledge
 * 3) Courage
 * 4) Expression
 * 5) Diligence

Out of these five stats, only four of them need to be maxed out. Knowledge, Courage, Expression and Understanding are crucial for day-to-day activity opportunities. Diligence is important, but it does not necessarily need to be maxed out.

Activities to Upgrade Stats Faster
Courage
 * 1) Working part time at the hospital.
 * 2) Eating the special ramen from Aiya's on rainy days.
 * 3) Reading The Great Man on your sofa.
 * 4) Reading Forever Macho on your sofa.
 * 5) Reading Guide to Pests on your sofa.
 * 6) Eating rotten food from the fridge.
 * 7) Defeating the bonus bosses at dungeons.
 * 8) Reading Men of History on your sofa.
 * 9) Reading Man-God on your sofa.

Knowledge
 * 1) Reading The O-Cha Way on your sofa.
 * 2) Studying at your desk at night.
 * 3) Reading The Divine Way on your sofa.
 * 4) Reading The Gentle Way on your sofa.
 * 5) Studying at the Library after school.
 * 6) Reading Who am I? on your sofa.
 * 7) Reading The Punk's Way on your sofa.
 * 8) Paying attention during lessons at school.
 * 9) Reading Guide to Pests on your sofa.
 * 10) Giving the right answer to questions in class.
 * 11) Reading The Noodle Way on your sofa.
 * 12) Eating special ramen at Aiya's on rainy days
 * 13) Reading Fun with Numbers on your sofa.

Expression
 * 1) Reading The Noodle Way on your sofa.
 * 2) Working as a tutor.
 * 3) Reading The Gentle Way on your sofa.
 * 4) Working as a translator.
 * 5) Reading The Punk's  Way on your sofa.
 * 6) Going to culture club after school.
 * 7) Reading The O-Cha Way on your sofa.
 * 8) Giving the right answers in class.
 * 9) Reading The Divine Way on your sofa.

Understanding
 * 1) Reading Off Today on your sofa.
 * 2) Reading Riddlemania on your sofa.
 * 3) Working part-time at folding origami.
 * 4) Reading Witch Detective on your sofa.
 * 5) Eating special ramen at Aiya's on rainy days.
 * 6) Reading Short on Cash on your sofa.
 * 7) Reading Sensei's Friends on your sofa.
 * 8) Working at the daycare after school.
 * 9) Reading Changing Careers on your sofa.

Diligence
 * 1) Reading Witch Detective on your sofa.
 * 2) Eating special ramen at Aiya's on rainy days.
 * 3) Reading Fun with Numbers on your sofa.
 * 4) Working part time at folding envelopes.
 * 5) Reading Riddlemania on your sofa.
 * 6) Reading Who am I? on your sofa.
 * 7) Going to the sports club.

Benefits of Upgrading Stats
Courage
 * 1) It helps establish the Moon Arcana S.Link.
 * 2) Naoto's S.Link can only begin after you max out Courage.
 * 3) Ability to make bolder answers to other characters.

Knowledge
 * 1) Get high or top marks on exams.
 * 2) Begin Margaret's S.Link.
 * 3) Naoto's S.Link can only begin after you max out Knowledge.

Expression
 * 1) Leveling up in the Hierophant and Justice S.Link.

Understanding
 * 1) It helps establish the Hang-Man S.Link.
 * 2) The Tower social link can only begin after you max out Understanding.

Diligence
 * 1) Ability to fish more times per day.
 * 2) Apply to work for the janitor job.
 * 3) Apply to work folding cranes.