You get him to organize the leaves in a pile, by blowing on them as they fall. Start at the right, and when one drifts down, click to blow underneath it to steer it left, onto the pile.
There is no Snoopy Island on Poptropica. Snoopy and "Peanuts" characters appear on Great Pumpkin Island. (see related question)
go left on great pumpkin island
Go left to Snoopy's doghouse and use the football. It will knock Snoopy's helmet out of the tree.
You have to get every note that comes up on the screen.
you grab the mask on the scarecrow and go into the house
You click to make Snoopy blow the leaves. You need 5 added to the leaf pile.
After Snoopy blows the leaves into the pile, Linus will jump into it.
Snoopy
Charlie Brown is on the sidewalk when you enter Great Pumpkin Island, but he spends much of the game in his back yard left of Main Street. Snoopy is at his dog house at the far left of the island. Your first task is in the pumpkin patch to the far right. You have to weigh the pumpkins, roll one back to Lucy's house, give Pigpen the bag, and give Linus the lemon sucker. Then you can go left where Charlie Brown is collecting the leaves with Snoopy.
you help snoopy when you get the football from charlie brown and lucy after they leave from the backyard. use the football to get snoopy's goggles from the tree near his doghouse. hope this helped!
The tree is at the far left next to Snoopy's dog house.
Just avoid being hit till times is up