Pets - Animals can be disturbing if you don't know they will be in a home. Always notify others if you will have a pet in your home during a showing, or better yet, put Fido somewhere else!
People - Make sure the seller's agent knows you will be viewing the property and always announce your arrival in a home you are viewing, someone may be there.
Food Moments - Don't eat any food that may be in the home unless you are specifically told that it is for those viewing the home.
Bathrooms - Always ask the agent if you can use the restroom first (seller may not want that), if it is vacant be sure the water is on in the home and above all always flush!
Extra People - Sometimes others may come in when you are viewing a home. Always wait for your agent before entering a home to view.Entertainment - You might find some things that are personal to the homeowner out and about you might not want to see. If you are a seller, put up personal things so others won't find them, or if a permanent fixture, make sure the agent knows what may be in the home.
Toys - If your kids go with you to a showing, don't let them play with the toys in the home. No matter how tempting, it's a seller's personal property and should be left alone. Sellers: put up any items that you don't want others to mess with or see to avoid awkward moments.