None, the changes necessary will come from within.
On a shellphone! My 7 year old self was very proud of coming up with this one....
She said she didn't see him coming
I'm not sure, It's always changing.
Tires need changing too you know!
because he changed the light bulb before it was cool
Just two, but how they get in there.. I don't know. (Stolen from an old Maxim in my dad's storage)
Presence.
A: Three - one to change it, one to not-change it and one to both change-and not-change it.