Sentence:  If you live and work in a small town atmosphere and can find acceptable ways to make yourself and your enterprise known in a <WSD>lighthanded</WSD> way to either or both groups in your town, you may find that some day down the road one of them will mention you to a family member who has just offhandedly mentioned the need to get rid of a collection of books. 
Meaning of the word marked with <WSD> tags:  Light-hearted; fun and witty or easygoing.