On the contrary if you have to install cut tiles you should spread the thinset to the back of the tiles and install it with the cut edge pointing towards the inside corner.
How to lay wall tile in a corner.
This time make the cuts at the corner so that the cut side of the tiles are about 1 8 inch from the face of the tiles on the other wall.
If you have to install full tiles along the internal corners we recommend you to spread tile adhesive directly to the wall by using a large notched trowel.
Spread the adhesive on the wall with a notched float and make sure the tiles are plumb use a spirit level to be sure.
This do it yourself video shows how to tile outside corner without bullnose.
Because fitting tile into a corner requires some extra work and planning it is wise to start in a corner setting this tile before you continue with any pieces around it.
All you have to do is to start installing wall tile on one side of the corner.
Press the tile against the wall with the cut side facing the corner and the other edge next to the last full tile in the course.
To install ceramic wall tile use a level and measuring tape to mark the tile locations on the wall with chalk.
Use long sweeping motions to apply mortar to the wall and start placing your tiles in the marked locations.
Space the two tiles consistent with the rest of the tiles generally 1 8 inch which will leave a 1 4 inch space at the corner.
Installation of corner tiles is the same as it is for wall tiles.
Be sure to put spacers between each tile as you go.
The outside corner is part of bathroom shower corner that need to be tiled.
That way you can use it as a guide for tiles that do not run along walls and ensure if your cut is off that you have extra tiles to work with.
Let all the tiles set overnight.
Install the wall tiles in such a way as to have a clearance space 1 8 1 10 between the corner and the tiles to leave them enough room to expand.