From our simple steps you will be able learn how to give a tile effect on an image in Photoshop CS, viz;
1. First of all you need to select an image and open it in Photoshop CS.
2. Tile window will appear on the screen if you click on Filter>Stylize> Tiles. If the window appears you need to submit the values (you can also try different values to get different results) click the OK button.
3. Now you can visualize the result.