Sitting, Ralph was aware of the heat for the first time that day. He pulled distastefully at his grey shirt and wondered whether he might undertake the adventure of washing it. Sitting under what seemed an unusual heat, even for this island, Ralph planned his toilet. He would like to have a pair of scissors and cut this hair - he flung the mass back - cut this filthy hair right back to half an inch. He would like to have a bath, a proper wallow with soap. He passed his tongue experimentally over his teeth and decided that a toothbrush would come in handy too. Then there were his nails.
What might the passage above suggest about Ralph at this point in the novel?