Do you need help learning to do Vibrato? Here's a helping HAND!  Start by singing a single pitch on any vowel. Then, move that pitch up and down on a small interval such as a half step. Move your hand up and down as you move between the pitches. It might be slow at first, but see how quickly you can move between the notes. To speed up, rather than trying to move your voice, move your hand quickly instead.   Due to kinesthetics, vibrato will often begin to appear almost like magic!  Be patient with yourself and the process and you should begin to feel what vibrato is, and your muscle memory combined with proper breath management and vocal strength will get you to that desired sound!!!   Give yourself a hand for trying this exercise!