Originally Posted by: KasperowDuring today's practice, I decided to try and spice up a pretty simple solo by adding some bends and vibrato, but every time I tried to bend the strings, the strings were muted instead of changing pitch.

I cover some of the basic mechanics of bending in these lessons.

http://www.guitartricks.com/lesson.php?input=15905&s_id=1147

http://www.guitartricks.com/lesson.php?input=20406&s_id=1614

Hope those help!