A case of a girl projecting confidence naturally? Or maybe other things make up for the lack of confidence?

From 'What Makes You Beautiful' by One Direction:

You're insecure,
Don't know what for,
You're turning heads when you walk through the door,
Don't need make-up,
To cover up,
Being the way that you are is enough,

Everyone else in the room can see it,
Everyone else but you,

Baby you light up my world like nobody else,
The way that you flip your hair gets me overwhelmed,
But when you smile at the ground it ain't hard to tell,
You don't know,
Oh, oh,
You don't know you're beautiful,
If only you saw what I can see,
You'd understand why I want you so desperately,
Right now I'm looking at you and I can't believe,
You don't know,
Oh, oh,
You don't know you're beautiful.

That's what makes you beautiful.

http://www.youtube.com/watch?v=QJO3ROT-A4E

"Regardless of how you feel inside, always try to look like a winner. Even if you are behind, a sustained look of control and confidence can give you a mental edge that results in victory."
- Diane Arbus

"It is best to act with confidence, no matter how little right you have to it."
- Lillian Hellman

"Confidence is key. Sometimes, you need to look like you're confident even when you're not."
- Vanessa Hudgens

Jesus Chist ate and drink with sinners because they needed his help. But he appeared to be a "low life" for doing so.

Mark 2:16-17 (NIV): When the teachers of the law who were Pharisees saw (Jesus) eating with the sinners and tax collectors, they asked his disciples: "Why does he eat with tax collectors and sinners?" On hearing this, Jesus said to them, "It is not the healthy who need a doctor, but the sick. I have not come to call the righteous, but sinners."