Iphone 4 reselling or trading?

I have a new contract through Verizon and because of my new service agreement I got two new phones. I'm in love with my Galaxy and have no plans to switch phones. How do you resell or give a phone away that has no sim card with out it being tied to your phone number.these phones have never been activated before. So when they are activated it has to be done through my new account no? I just don't want to give these to any one or sell them possibly. And be paying THEIR cell phone bill. I don't want Verizon to know that I just got two free phones from them and am still using my old Galaxy from another carrier. So what do i do? How do I make sure once it has been sold or traded etc. The phone has ZERO ties to my number? Thank you.ps.these are iphone 4's so they have no micro sim because there are under a Verizon contract

Please first consult your carrier and then a trustable mobileshop?!