Greyhound Friends, located at 167 Saddle Hill Road, will celebrate International Dog Day on Sunday, Aug. 25, from 10 a.m.-1 p.m. with a gathering at the shelter for friends, neighbors, dog people and, most especially, dogs. All are invited to bring their well-behaved and sociable pups to meet other dog lovers and enjoy some special treats and activities. Local adoption groups will have some furry friends, and there will be products for people and pets from local vendors as well as dog care and training advice. Admission is free. For more information, visit greyhound.org.