DO WOT THE WIZARD SAID!!!!! you can also use this in live situations if your not feeling very confident an also it gives a good kinda distorted sound even if you dont bend up to the right note, its one of my favourite sounds that you can make when just messin bout on guitar.

when doin a pull off after a bend do not just bend the string and let go hopin it will work cos it wont (well not for me anyway) try bending it up an then bring the bend back down again very quickly an the pulling off practice it slow but should be quite easy to do.