Tristan started to ask why, but then he remembered. She was blind. So he just kept walking.
He was interested how almost everyone was walking their Pokemon. So he decided to as well. He let Iceberg out of the Pokeball.
When they got to Cherrygrove, it was about in the middle of the day. Tristan smiled, refreshed by the scenery. "We can rest here for a while," He said. He heard Piplup chanting his name, as a Pokemon would usually do. But Iceberg sounded eager for something, so he looked at him.
Iceberg was jumping up and down, and finally he jumped high enough to grab onto Tristan's hoodie. "Huh...?"
Then he realized he was trying to climb him, to get on his shoulder or something. "Oh," So he just pulled him up onto his shoulder. Then Iceberg climbed up onto his head and sat down. Normally, if just any Pokemon would do that, he would be annoyed, but his Piplup was small and didn't weigh much so it didn't bother him.
And Iceberg was just trying to get a better view, not just to annoy him.
EDIT: If some parts of my post didn't make sense, it was because I had started writing my post before the poster above posted. Sorry.