I went out for the first time a week ago. I didn't make an approach but I have been making an effort to talk to random girls I find attractive every day. Here's what I've learned.

Girls like talking. If you bring positive emotions, they will likely give you more positive emotions. Humans enjoy connecting with one another.

Girls like laughing, you don't have to try so hard to make them laugh. Amuse yourself and get better at expressing that amusement. The amusement does not belong to you or her, it is a shared experience.

Girls are nice. If you don't bring negative energy around, they aren't going to be shitty to you.

It's ok to talk to people. Strangers in the store are humans. They talk to other humans. You're a human. You talk to other humans. Two humans can speak to each other.

Compliments work. Girls like to feel good about themselves.

You are worthy. No matter what anyone has made you believe, you are worthy of getting the girl, you are worthy of living a good life, you are worthy of basic human decency.

GIVE GIVE GIVE! GIVE more than you TAKE!

I could be wrong but this is what I've gathered so far.