I've noticed by watching a lot of youtube videos that there are different types of straight that people like their hair.
I like mines very pin-straight. But there was some other people who like theirs wavy at the ends, or puffy at the roots (for volume).

Attached is a picture of how I like my hair when I straighten it.
That is second day hair, btw.
Attached Thumbnails
How straight do you like your hair?-straight.jpg