A technique I've used is to find the fret from which I am bending. If I am performing a full bend I fret and play the note 2 frets above. I repeat this until the note sticks in my head. Then I go back down 2 frets, play the note and bend until it reaches the correct pitch.

If I am using a half bend, I go through the same steps but with the note 1 fret above.