Make sure the ventilation is adequate. Use latex-modified mortar for a stronger bond. Use the trowel recommended by the mortar manufacturer to start spreading your mortar. Begin laying bricks in the center of the room, pressing firmly and twisting slightly to set them securely in the mortar. If you're using a basket weave or other pattern that can easily be broken into sections, use a chalk line to set reference lines on the floor.
Projects involving bricks can take a long time.
Avoid the temptation to rush as you get near the end. After applying sealer, allow the bricks to cure for 24 hours. Apply grout in the same manner as you would for a tile floor. Use a rubber grout float to force as much grout as possible into the joints. Spread the grout in several directions to ensure the best coverage.