Mine use to push on the door so it banged a bit. Irritating as hell but it
worked!

Nikki does this on the door to the balcony - even though it's *open*. She
also gets up on a chair and scratches the window. Though the door is open.
Screech screech screech. That cat is determined to drive me insane.

Mine do that when they're in the house sometimes.  I have no idea why.
I have a cat door, and the slider is very hard to open, so I almost
never open it.

Joy

There is no glass on our bedroom door but Jazz will pound on it and howl
until I open the door for him in the morning.
Jazz & his mama

Little Bit does, both to get in or out depending on her mood.
Sometimes she gets upset with me now that I only let her out when I'm
ready to go out with her - she came to me as a stray, so she's thinks
she should be able to go out anytime.

From the subject line I figured you were asking about something both
Little Bit and Sammy do. When they see one of the neighbor cats
visiting they sometimes run full speed at the glass and jump against
it from a couple feet away. They don't run into the glass, they just
want the noise from when their front paws smack the glass.

Certainly do, Mojo does it at the front door when he wants "in" even though
he's got a perfectly good cat door.

Mine have not discovered that yet.
They just sit at the French Doors and look in. Waiting patiently for
the doorman to get there. If I am late(for them at least) the youngest
one will meow several times. Each meow getting louder than the last
one.

When we had our old storm doors our cat would hook the corner of the door
with its claw and pull it repeatedly so the door would go bang-bang-bang.
It sounded just like a human knocking on the door.