First spray the palette with some water, then lay down at least a nickel sized amount of paint, then mist the paint.
When blending with acrylics get the colors you want, mix them out on the palette. Put one thick line of the first color, make sure it is wet, then take the second color and do the same thing right beside the first color. Criss-cross the two colors from top to bottom. Then while they are still wet, brush the center of the two, down in a quick stroke. Ta-da, nice blended acrylic colors.