All that the unsuspecting Bilbo saw that morning was an old man with a staff. He...

All that the unsuspecting Bilbo saw that morning was an old man with a staff. He had a tall pointed blue hat, a long grey cloak, a silver scarf over which his long white beard hung down below his waist, and immense black boots.
"Good morning!" said Bilbo, and he meant it. The sun was shining, and the grass was very green. But Gandalf looked at him from under long bushy eyebrows that stuck out further than the brim of his shady hat.
"What do you mean?" he said. "Do you wish me a good morning, or mean that it is a good morning whether I wish it or not; or that you feel good this morning; or that it is a morning to be good on?"
"All of them at once," said Bilbo. "And a very fine morning for a pipe of tobacco out of doors, into the bargain." Then Bilbo sat down on a seat by his door, crossed his legs, and blew out a beautiful grey ring of smoke that sailed up into the air without breaking and floated away over The Hill.