Learn to play the melody of this song with your right hand alone, then you can add chords with your left hand. You will use the I, IV, and V7 chords in C Major.
Begin with your third finger on e and stay in the same hand position throughout the song and you will have a smooth melody.
Add a rhythm such as an 8 Beat, Swing, or Rock. Begin ver-r-ry slowly with a tempo of 60.
When you can play it well at that speed, then try it faster.
Listen to the song