Which side of the shower do you get in and out?

The side opposite the wall.

I use to have a round shower. It was awesome. It was like getting into a portal every time.

I get in the shower on the side with the door on it.

Who still has a shower curtain these days? Aren't most showers glassed in now? There's only one place to get in, where the doors open.

I get in through the trap door.

No shower curtain..

I go in and out of the door.

My shower has a single egress so the decision of entering and leaving is made in advance. I use the only means possible.

The north west "corner".

My shower opens on the shower head side. There's a door, no curtain.

I don't have a shower curtain?

Depends on where the toilet is.

I get out opposite the side on the shower head, but thats because thats where the towel rack is.