How to stop text vibration on iphone 4?

Every time i'm on the phone talking to someone, someone texts me and it vibrates and the other person can hear it, How do i turn it off so that it doesn't do that.

Throw it against the wall and scream stop it. Worked with mine. Except now it won't turn on. I think it's mad at me.

So, go into your general settings, then go to sounds. At the top of that screen, there should be two options. Vibrate on silent, and vibrate. Both should be off. If they are on, simply switch it off and you should be fine. -Stephanie<3

Just go to settings and sound and you shold be able to turn vicration on or off