How to send pictures from iPhone without it emailing the picture?

I just got an iPhone 4s and every time I send a picture it sends it as my email not as my phone number. How can I change this?

Go to your Messages and compose a message and on the left of the area where you would type, there's a camera icon. If you click on it, it asks to either Take a picture or Choose existing. And once you have a picture in the message, you just send it to the contact you wish to send it to.

Make sure your iPhone is on iOS.5.x then you can send them via iMessage
http://iphone.pandaapp.com/