In case you still don't understand it you go to the porch, grab the bag that wasn't there before on the right, take a right and the dumpster will be across the waterway, go there and look for 'Trash [Jay]' in your inventory and use it. After that go back to Jay to turn in for 3 trust.
Yeah like HZark said, you gotta explore some and get to know the town. There are still bugs, like one entry into another area goes back to the same one you just came from... but the dev has started and stopped this game like 3 or 4 times. it was called "Big Long Complex" before. He hasnt ever finished it. But it seems it is because he is constantly upgrading it. It started kinda almost PS1 status. Now its Wii status. He's getting there. We are really just going to have to have a looot of patience with this one. lol ^_^ Consider this game still Beta version af.