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Holding a mallet is like holding a drumstick or bike handle. Use your thumb to support the outside of the mallet. Wrap your index finger around the other side. This finger should not be on top of the mallet. Move your other fingers under your index finger. Your grip should be about halfway up the mallet shaft. One way to check your grip is to open up your hand. Try to balance the mallet on your index finger. The spot where the mallet feels balanced is where your grip should be. Stay relaxed as you move the mallets towards the glockenspiel. Hold the mallets about three inches (7.62 cm) above the keys at all times. Adjust your hands so that the mallets are level with the ground. Try striking one of the keys. Listen as the note vibrates cleanly. Striking near the ends of the bars produces a more muted sound. The key to good sound is a gentle strike. Don’t use force. Instead, bring the mallet down gently and allow the impact with the bar to bounce it back into position. Striking too hard will also cause the bar to vibrate too much and produce a muted sound. Don’t draw back when the mallet rebounds off the bar. Return it to a holding position right above the keys. As long as you keep the mallets about three inches above the keys, you’ll be able to play notes in rapid succession. Strike the second note with your other hand. If you hit the first one with your left, hit the next one with your right. If you hit it with your right, switch to your left. You will need to cross over your arms as you play. As you advance, you may need to play two notes with the same hand. You do this to minimize crossovers between your hands. Alternating technique is needed for playing two nearby notes very quickly.

Summary:
Pick up the mallets between your thumb and index finger. Hold the mallets straight and over the glockenspiel. Aim for the middle of the bar. Bounce the mallet off the bar. Keep the mallet near the bars. Alternate hands when playing notes.