What is the most logical next event?

How to sponge paint a bathroom
Apply painter's tape to the ceiling where it meets the wall, the doorjambs, wood trim and any areas where the walls of the bathroom meet the tile.
This will protect these areas from the paint and help make cleanup easier.
Pour some of the paint in the base color, or color that will be behind the sponged paint, into a paint tray.

Choose from:
1). Dip a paint roller into the paint and roll the base color onto the bathroom walls. Use a paintbrush to apply the paint to the edges of the room..
2). ( use an old glass or plastic paint tray. ) apply the painter's tape to the inside of the tray..
3). Set the tray under the baseboard and sweep it around the area. Level and spray the paint with painter's tape to make sure it is smooth..
4). Use the paint tray to mix the paint. Move the tray into the sink, fill with water and turn on the faucet..
1).