What are you going to do when you are with your friends, and they decide to do something that does not reveal Christ? Are you going to go along with them? It would be understandable if you did, we are humans, and we like to fit in. We crave acceptance, but are you willing to sin just so that you can look cool in front of our peers? There is only one way to be strong in moments like those, and that is standing with God.
Noah is that example of standing with God, even when the world around him was consumed with sin. God, who sees the heart of every man, decided to save Noah and his family because of his steadfast love and obedience to God. We need to strive to be like Noah, to stand with God alone during temptations of the world.