Well, not really. Pandas are shy animals and are essentially loners. They detect fellow pandas using their strong sense of smell, and try to avoid them! However, during the breeding season, they actively use their smelling sense to locate females for mating.
Unlike other bears, pandas do not hibernate during winters. However, they might migrate short distances to lower elevations. Why? Because they can't stop eating. Since they get so less nutrition from bamboos, pandas are unable to build fat reserves to last them through the winter.