Look in the ears, making sure there is no debris or obvious accumulation of wax. As you examine your dog, look for any lumps, bruises, cuts or abnormal skin appearance. Check the coat carefully, looking for fleas and ticks. Don't neglect the dog's underside, brisket, groin, legs and feet. If your dog is active, pay particular attention to the feet, at the base of the nails, between toes, and pads.
Feet are a likely area for injury in an active dog.
Frequent brushing with a rubber or hair mitt is good for coat condition, as well as the dog's feeling of well-being. The coat should be shiny and smooth. A dull dry coat indicates an unhealthy condition. Regular exercise in the form of walking or frolicking in a secure yard is very important to muscle tone and condition. A Greyhound in good condition is going to be happy, show it's natural movement in the show ring, and be much less likely to injure itself during strenuous activities.