Make sure you have a clean dry river rock.  You can begin with your own template, follow a pattern you like or I highly recommend you watch Kristin Uhlrig's tutorial before you begin.  I am beginning with a black circle.  Hold your brush steady and turn your rock to create a black circle in the center of your rock.

Be certain to allow this to dry thoroughly.  After drying, use one of the larger dot tools from your Mandala Paint Kit to add a yellow dot in the center of your black circle.

Use a smaller dot tool to add four orange dots around the yellow in a North, South, East, West pattern.

Fill in with some additional orange dots and add a circle of red around that.

Be certain to have a baby wipe or paper towel nearby to clean your brushes and tools.  Use your large dot tool again to add some purple dots on the outside.

Use one of the smaller tools to add small blue dots on the outside.

You can add different sizes of small blue dots.

Continue creating circles around your larger circles with your smaller tool.

Here I am using a small tool to create a v shape in green.

Finally, I fill in and add some depth to my painting by using small white dots.