Tabbed by Ian Sullivan

This is the intro/main riff to Think About It

(Intro)
e-------------------------------------------------------------------|
B-------------------------------------------------------------------|
G------------1(b9)-1(b9)1(b9)--16-16--------------------------------------|  Reapeat once, at the end
D--17-16-17--------------------17-16-16-----------------------------|   of the second time bend the
A----------------------------------------   D string fretted at 16--|
E-------------------------------------------------------------------|

(Main riff)
e-----------------|
B-----------------|
G-----------------|   Repeat this a lot...
D---------7-------|
A--7-10-7---10-7--|
E-----------------|

e---------------------|
B---------------------|
G---------------------|       Page lowers key at one point while Relf sings
D--------5------------|       "...have their say"
A--5-8-5---8-5--------|
E---------------------|

The solo starts off with the intro 3 times and then hits some high notes followed by 
seems to be a precursor to the Dazed and Confused solo(the real fast bit) Listen to the 
and you can get the rhythms.