The wall should be strong and flat, surface be smooth, The wall should be waxed/printed. Wall should be clean and dry. If the tiling has to be done on plywood the surface of wall should sealed with 50% volume mixture of PVA and water.
Firstly, apply the high quality ceramic adhesive on the wall an place first tile on the corner. Appy even pressure on the four corner of the tile to ensure stiking. Fill the area of the wall that can be filles with the tile without cutting and leave if for at least 12 hours. Fill the rest of area with the measures and cut tiles.
While laying the normal tiles, keep on empty space where a accessary tiles will be fit. Apply the adhesive on the back of accessary tiles and place if uniformly in the space and apply even pressure to place the accessary tile.
To pass the pipe through the tile, the tile to be cut in a specific manner. Mark the position on the tile, which the tile will occupy. Draw a straight line passing through the center of the circle, cut the tile on the drawn. Cut the semi circle on each of the half and when these two halves placed together will form a hole.