Step 11: Grouting
Your hands are a good tool for the grouting process. Put on a pair of rubber gloves and use your hands and a float to work the grout mixture into the tile cracks and crevices. Work in small areas at a time. Remove as much grout off the surface of the tiles as you go along to keep things as smooth and clean as possible. Keep a damp rag and an ammonia/water solution handy to help clean the tops of your tiles. This will save you on sanding later on.
Note: the tiles were not primed with the sanding sealer in this photo. this was a tip we figured out quickly after we got started. If you do not seal your tiles, they absorb the liquid from the grout too quickly.