You can't remove your friends restaurant from your street unless you reomve the friend itself. If it is a friend that works for you that you want to remove, click on them and press 'SACK'. You will have to give them two-hundred coins.
You talk to this one dude in Pastoria City.
in the city with the casino at the bottom there is a restaurant and in the back of the room there is a guy who will give it to you
the dude on the hill in pewter city will give you one. hope this helped:-)
It is in Olivine City, in the restaurant next to the Pokémon center. A sailor will give it to you.
In Celadon City, at the Gamefreak headquarters building. On the first floor there is an old lady surrounded by pokemon. Talk to her and she will give you tea, which you can give to the guards to get to Saffron
You can help your friends with favors, which is usually something like stopping a fire or plugging a water leak. The first few friends you help will give you more money than the ones you help last. You can also sell useless thing by clicking on the "redecorate" button (the tool at the icons on the bottom) or click on the trees surrounding your restaurant.
go to eterna city and go into the wierd house. then talk to the dude and he will give it to you. you get stuff if you do his quests.
if you see the "green guy or dude" click on him and he will give you a gummy. do it every day for a week and well see what you get ( i got it already) hihed!
U have to go to yukea and click on the dude there. he will give u a seed then plant it with 2 other plants.
You go on to the rooftop restaurant you climb up the vine and click on the giant he will thank you for giving him his egg and he will let you pass.
if your on super power island you start off on min street, then go right to down town, then right again to city park right near the fountain and broken statue there is a hotdog dude hell click on him and he'll give you a pretzel. Hope that helps!