I usually hold a drinking straw down the plug hole and turn the bottom
pulley with a big socket and bar to get #1 at the top. Other method is
put car in highest gear, jack a driven wheel off the ground (chock and
support it safely) and then get someone to turn the lifted wheel as
you watch the straw.

Remember the piston will come to the top once for top dead centre
(when it should get a spark) and once for the top of the exhaust
stroke. Suck(down), Squeeze(up), (bang)Power stroke(down),
exhaust(up).

Assuming you're got the leads plugged into the dizzy cap in the
correct order 1,3,4,2 for a 4 cylinder and 1,5,3,6,2,4 for a 6
cylinder.

For a 4 cylinder - If you have #1 cylinder up the top the rotor arm
should be pointing to #1 if you really have the firing stroke (TDC),
or #4 if you've got the top of the exhaust stroke.

For a 6 cylinder - If you have #1 cylinder up the top the rotor arm
should be pointing to #1 if you really have the firing stroke (TDC),
or #6 if you've got the top of the exhaust stroke.

So basically even if you're not sure if you've got TDC or top of
exhaust stroke you've only got 2 ways the leads can go... Try it, if
they don't work, move them all round on the dizzy cap 180 degrees.

Oh, and last but by no means least, make sure you're going round the
dizzy cap the right direction! If you're not sure, take the cap off
and get someone to turn the engine over so you know which way the
rotor arm goes round! I think it's normally clockwise, but it's been a
while since I've had to do this (I now drive a diesel) and I could be
wrong!

Hope some of this helps.

Dodgy.

You don't stick your finger down the spark plug hole - just cover it to
make a seal so you can feel the compression.