When we examine the Ten Commandments, the obvious ways of violating them are apparent, but what are some of the more subtle ways we can break them? For example, most people will never be in a situation in which they are tempted to break the 5th Commandment, but most of us have killed someone's reputation with gossip. Go through each of the Commandments and tell about a not so obvious way it can be broken.
See pp. 32-34 in last year's What the Church Believes and Teaches or pp. 192-255 in your Youcat for further explanations of the Commandments.