The one that moves the most pull and hold the disc against it and pump the lever to try and get the other to realign,if this doesn't work take the wheel of and push the pads back in,then put thw wheel back in and pump the lever until the pads center themselves.
Alright guys its me again, I have put the front brake on (same make etc...)I used the bike for about half an hour and both *BOTH* calipers dont move and they totally trap the disc and i cant move the wheel, do i still do it the same way but hold both sides so they dont pop out? thanks,,,,