Here are some tips to help you tile a bathroom wall. For better moisture protection, apply cement board to your walls using roofing nails. To start tiling, find the center of the wall and strike a plumb line. Apply an even coat of adhesive with a quarter-inch toothed trowel. Start with full tiles at the bottom, pressing them firmly into place. Let dry overnight and you’re ready to grout.

For more on tile, consider:

How To: Install Tile
5 Reasons to Love Subway Tile
Quick Tip: Laying Bathroom Tile