Christopher Robin was sitting outside his door, putting on his Big Boots. As soon as he saw the Big Boots, Pooh knew that an Adventure was going to happen  

"We are all going on an Expedition," said Christopher Robin

"Going on an Expotition?" said Pooh eagerly. "I don't think I've ever been on one of those. Where are we going to on this Expotition?" 

"We're going to discover the North Pole." "Oh!" said Pooh again. "What is the North Pole?" he asked. "It's just a thing you discover," said Christopher Robin carelessly, not being quite sure himself.

"Oh! I see," said Pooh. "Are bears any good at discovering it?" 

"Of course they are. And Rabbit and Kanga and all of you. It's an Expedition. That's what an Expedition means. A long line of everybody..."

…

The first person Pooh met was Rabbit. "Hallo, Rabbit," he said,  "We're all going on an. Expotition with Christopher Robin!" 

"What is it when we're on it?" 

"A sort of boat, I think," said Pooh. 

"Oh! that sort." "Yes. And we're going to discover a Pole or something. Or was it a Mole? Anyhow we're going to discover it."