You've probably noticed that virtually NO professional piano player plays music exactly like it is written in sheet music (except for classical, of course -- that's a different matter).
Instead, they embellish and improvise and arrange the music that is on the printed sheet -- in other words, they "dress up naked music."There is a great course on the subject at "How To Dress Up Naked Music On The Piano"
Check it out. It covers 101 things that pianists do to make plain old sheet music come to life in new and exciting ways.