If you call yourself a Christian there must be something unique, something extraordinary, something different to differentiate you from the world and to make you outstanding among others.
Keep yourself In a way that if people see you they would know that indeed you are reserved for God alone and not for the worldly name.
You won't say you are a christian and it won't show every where you go, if you don't know how to pray I wonder what you know how to do because prayer is the only thing saving us from this hard world it's a means by which God communicates with us his children.