This funky bass riff is repeated all the way through the song. To make it sound authentic you will need to use a Fuzz Box. I don't bother cause I'm poor and can't afford one. I've worked this out using an acoustic guitar instead of a fuzzy bass so I shall be expecting corrections! To be honest, I've never picked up a bass guitar in my life...
The timings aren't correct but it isn't too hard to work out for yourself.
G ||-----------------------------------|----------------------------------|
D ||-----------------------------------|----------------------------------|
A ||-----------------------------------|----------------------------------|


E ||--10---5---5---5---9---5---5-5-5---|--8---5---5---5---7---5---5---5---|