If the skin doesn't immediately return to the original position, your dog may be dehydrated. Gently press your finger against your dog's gums until the color lightens, then lift your finger.
[header] How to make your dog drink water [title] Look for signs of dehydration. [step] Most healthy dogs are pretty good at managing their own water consumption. Check for the following signs of ill health or dehydration before you get too concerned : [substeps] Gently pinch a fold of the dog's skin at the back of the dog's neck or between the shoulder blades, and let go.