This lesson is a latin feeling improvisation that utilizes notes from two easy sources: the G Major scale, and the D minor pentatonic scale. You will notice that it is in the key of G Major. The entire tab is included below to allow easy reading once all the parts are learned separately.
Ultimately this is an exercise in improvising. Once you get the feel of the backing and understand the note choices available to you, it's up to you how you spend the extra time remaining in the track. Be creative and get into that latin mindset!