Here are the steps to tile a bathroom wall:
1. Choose your tile.
2. Prep the wall for tiling.
3. Create a tile layout.
4. Mix the thinset.
5. Lay the tiles.
6. Apply the grout with a float.
7. Once the grout cures, seal the tile.
I hope this helps! Let me know if you have any other questions or if you need more information on any of these steps.
[Here](https://www.bobvila.com/articles/how-to-tile-a-bathroom-wall/) is a link to a more detailed tutorial on how to tile a bathroom wall from Bob Vila that you might find helpful.