There are certain things that, on occasion, the Doctor finds himself missing dearly. Travelling, seeing new worlds, meeting new people, all of of those are constants but there are smaller things too.
A good cookie is one of them.
Most of his time is spent at the hospital and while their care of their patients is excellent, the same cannot be said for their food. So, when he sees the large spread of food and spots the cookies, he finds himself gravitating towards those first.
Taking a quick survey of what his choices were, he gives for one of the larger ones, breaking it in half and starting to munch on it. However, he soon starts peering about, looking for anyone who may look as if they could use a tasty treat.