Great topic-
Be helpful without being derogitory (my way is the only way attitude)
Don't make a customer stand there and wait to be helped- can I help you? what a concept!

Carry more than 2 line of bows.
Have more bow options on hand- I know you don't make money if you don't sell bows on hand, but I don't want to order one just to get it in and realize I don't like the way it feels.

Don't throw a fit if someone mentions the words Bass pro or cabelas- People are going to shop at other places so grin and bear it.

Make it a point to shoot a bow before buying it. My proshop will only let you shoot one before buying if you beg and plead (that's why they haven't seen my money in a long time).