This kind of medium temp is pretty difficult to play.
However, What you really need to play this type of song is not the ad-lib but established thick rhythm.
If you have a strong rhythm based, it's easier to play and praise. Remember the two bars pattern in the intro. The first bar has no bounce, and the second bard is pulled. It's difficult to express all that things in words, but still try to focus on the rhythm.
you should care about how the verse is developed when it's repeated and how the bridge is developed when its repeated. Also take a look at the second chorus, 53th bars.
You have to think a lot when you listen to it. just listening is not helpful.
You should care more about rhythm than noticing the note.
Have a great weekend.