Can anyone explain this? When I put food down for my dog, especially something he really likes, he turns round and seeks a long, long, eye contact with me. It is not aggressive, and if I were anthropomorphising I would say he is showing appreciation or thanks. But I try not to anthropomorphise. Maybe it is just one of those random behaviours that evolution throws up, that get retained because it has useful results (ie humans like the dogs that do it, and keep them for breeding). Any other ideas?