1 Corinthians 10:31 So whether you eat or drink or whatever you do, do it all for the glory of God.
Have you ever asked yourself why you do certain things in your life? Maybe you are in the habit of doing something every Friday after school or work, or some other day; whatever it is, can you think why?
Our purpose in life should be to bring glory to our God, the God who has made everything and by whom everything exists. If we get up to things which do not bring glory to God then we should be asking why.
Does that mean everything? Yes. God has given us amazing abilities and choices in our lives. Doing stuff right brings glory to God if you acknowledge Him in everything first of all.