I have two half sleeves and a chest piece. All of which I got in college and still like. I would not get a tattoo that can't be covered up. Many "real" jobs frown on visible tattoos. I would not get the name of a girlfriend or anything like that. No matter how in love you could be things change. A son, daughter, dead family member or dead friends name etc wouldn't be a bad move. If you decide to get one just make sure it is something you will like for the rest of your life.