Drawing with pencil is a very intuitive process. At first glance it might seem very easy, but every pencil has its character and its secrets. The main difference from the usual colored pencil and watercolor pencil is it's "lead". The leads are made by using compressed water soluble paints and this process does not allow the lead to crumble when drawing. Water-soluble pencils can be combined perfectly with other materials. Often they are used in watercolor paintings, ink drawings, and paintings. You can easily erase them just like regular graphite pencils before adding water. The uniqueness begins when the pencil hits the water.
The artists can use watercolor pencils in different ways: dilute a pencil drawing with a wet brush, use the pencil with a pre-moistened tip, or drawing on wet paper. When you will apply the water, you'll notice how the lines dissolve, creating the watercolor effect. The intensity of color will depend on the amount of pencil layers, the thicker the layer - the richer the color. You can mix colors to achieve the desired hue.
There are significant differences between working on dry and wet paper. On moist paper watercolor pencils leave soft and wide lines. As the lead dries the line will become thinner and dimmer. It is not recommended to work with a sharp pencil on wet paper. Make sure that the tip of a pencil is always clean and wipe your pencils with a dry cloth.