X's are palm muted notes, Listen to teen spirit, in between the chords being played thers a wacka-wacka (just likeiamthe_eggman said.)

Chords you need to play teenspirit intro/chorus

E5: 022xxx

A5: x022xx

G5: 355xxx

C5: x355xx

(if you don't know how to read the above chords then ask me, the x's this time mean the string is not played)

so play E5 put your hand lightly over all the strings and strum all the strings Then play A5. Do the same as above with G5 and C5.

Keep strumming all the way through.
STRUMMING PATTERN; ^=downstroke \=upstroke
E5: ^ \ ^
X's ^ \ ^ \ ^
A5: ^ \ ^

G5: ^ \ ^
X's: ^ \ ^ \ ^
C5: ^ \ ^