No running near flowers
No digging up items that are buried
No erasing placed tiles
no stealing items
pretty much dont trash the town
You can't erase someone else's pattern anyways.
That is person to person.
Example: Here are the rules from my thread
Do:
Have fun
Explore
Visit my house
Talk to the villagers
Shake some trees
Pick any fruit you like
Shop
Do Not:
Do not run near flowers
Do not dig up any buried items
Do not pick rare mushrooms
Do not pick clovers
Do not pick flowers
Do not leave trash behind
Yeah. Sometimes, people think if you talk to another villager and they decide to move, they'll go to your town or something. I don't know.