Faithful Fridays is a day where christians can share there faith, a song, a bible verse, a bible study that you are working through or anything that God has put on your heart to share. You can go to Joy's blog Doodle Bug to get the rules and picture.
And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God.
It is very easy to love the evil or to-be-cool things in this world. Like clothes, songs, shows, outings, etc., but we as Christians are not supposed to like or do those things as this verse is talking about. The word conform means to be similar or the same as something, and to behave in a way that is accepted by most people. The verse is telling us not to behave like the world, not to fit in this world. Imagine a bunch of fish swimming together going the easy way down stream and you are a Christian in amongst them. You should turn around and swim the opposite way going up stream.
But you can't do it alone. When you are not sure if something is right or wrong ask God to help you figure it out. Or look in His word and it could have the answer in it too!
God bless you guys!