Any tips for removing headliner?

If anyone has done this, I’m just curious if anyone has any tricks to make it go smooth. I looked at the FSM and it shows where all the clips are on the A and B pillars and says they are “A” and “B” clips, but I can’t find the part that says what kind of clips those are.

I need to get this out this weekend cause the car is going in for paint next week. Finally going to get some paint on the hatch and my roof is going to be black. I’m also getting the wiper pisser on the roof shaved (which is why I need the headliner out) since it’s useless because I shaved the hatch wiper.

Yay paint!