Hold each note until you play the next. Do not leave gaps in the music. Do not leave gaps unless David wants gaps. Unless David wants nervous spaces. It doesn't matter whether the music is nervous and lean, you are playing pop music.
Pop music uses simple rhythms.
The drummer and bass play these simple rhythms for two or four bars. Then, either the drummer or bass player varies the pattern. Varies it for just a moment. These variations are called fills. David taught Tina how to play bass and how to play fills.