A very short lesson in Psychology: 

-kakashi:

• When a person laughs too much, even on stupid things, that person is sad deep inside
• When a person sleeps a lot, that person is lonely
• When a person talks less and if he talks fast, that person is keeping a secret
• When a person can’t cry, that person is weak
• When a person eats in an abnormal way, that person is in tension
• When a person cries on little things, that person is softhearted
• When someone asks about you although that someone is busy, he/she really loves you