Conducting a concert band or an orchestra is much more difficult than it may look. There's a lot more to it than just standing in front of the group, with your back to the audience, waving a stick. :-)
On the other hand, there are various rewards involved also. Here's what Sir Eugene Goossens had to say about it:
"You can draw a sort of immense emotional throb out of the air merely by curving your hand. You can get brilliant waves of sound merely by a twist of the wrist. You can make sudden and absolute silence by a gesture. It is the most wonderful of sensations that any man can conceive. It really oughtn't to be allowed."
(from page 6 ofTHE ARMCHAIR CONDUCTOR[ Note: If you're at all interested in conducting, buy this book! It's well worth the US$10 price -- and even includes a baton. :-) ]
How to Lead a Symphony Orchestra in the Privacy of Your Own Home
by Dan Carlinsky and Ed Goodgold
Dell Publishing, New York, 1991
Here are some more places to read about the art of conducting: