1. TOUCH _ to be or move so close together that there is no space between them
2. HUG_ to put your arms around somebody, especially to show that you love her/him
3. KISS_ to touch somebody with your lips to show love or friendship...
4. LOVE_ a strong feeling that you have when you like (crush) somebody very much.
5.HAPPY_ *feeling or showing pleasured,pleased
*giving or causing pleasure
*satisfied that something is good and right; not worried.
p/s: Life is just so wonderful, if we can understand the MEANING of those words