Thinks thats makes me happy

[Cristian]

Happiness is to go skiing with my friends.
Happiness is sitting on the couch of my father and smoke a special cigar.
Happiness is to see how FC Barcelona win the Champions League in Santiago's Bernabeu field.
Happiness is doing what I want when I want.

[Guest]

Sorry, the subject it's wrong...
The correct is "THINGS" thats "make" me happy, but I don't know how can I do to change....