We are to be a light in a dark world. We are to be in the world but not do the things as the world does.
People should be able to tell we are Christians by our actions at all times.
Being around strong mature Godly brothers and sisters has been a great influence on myself.
My greatest challenge is in my workplace with my boss who knows I am a Christian, sometimes his actions towards me are pretty ugly, but I know who I am in Christ and that is what counts.