Some really good tips on volleyball include blocking tips whereby you will be required to keep your eyes open always, tips on spiking whereby you will be required to push the ball forward and downwards, serving tips where you will be required to ensure that your hands contacts directly during the serve and the most important of them all, tips on spiking by developing a strong muscular memory of the proper execution of the spike.
Well if your a server, before the game do like 40 good tosses up in the air. Don't hit them, just get a good feel of the ball. Also when going for the ball shuffle over and then put your arms in position. It will give you more speed to get there. Hope that helps. =) good luck!