Congratulations!! Welcome to the ranks of Scouting Leadership! I was a Cubmaster, like many of the others, for four years. Getting up in front of people IS difficult. I know...I stutter. For me, the best thing I could do was to be as prepared as possible. If I had to wing it, it was very difficult. Secondly, I would like to say..."walk the walk and talk the talk". That means, be up there in full uniform and look the part. The uniform will lend itself to respect and willing listeners. Also, who are you talking to? The boys. You are getting them excited about a pinewood derby, coaching them on scouting skills, praising them for their advancement, and reminding them of upcoming events. I think you will find that how those boys hear you is different than what you perceive. Enjoy these times with the cub scouts. They'll enjoy you, too.