The strange electric sound during Intro and chorus 1 (I am not sure whether
it's a synth or a fx:ed guitar doing it) can be simulated like this with
the second guitar:
e|---2-3----------------------------------------------------------------|
[Have a listen to the song to hear how many times and where it's played]
Then play the following chorus eight times before end.
The 2nd guitar thingie as in chorus 1 is played like earlier, but on the
4th and 5th fret of the G-string (no jokes please).