The video shows a tutorial on how to install ceramic tiles using concrete.  A person wearing an orange vest and black pants is working on tiling a room in a house.  He is kneeling down next to a pile of white square ceramic tiles and a bucket filled with grout and cement.  He is smearing the floor with cement with a trowel.  Then he places the square tiles next to each other in a straight line, making sure they are fitted tightly together.  He removes more tiles from the box to places them on the wet cement, making sure they are properly aligned with each other.  He continues placing the tiles to fill in all the gaps until the entire room is fully covered with the white tiles.