For many, visiting open houses is a multi-hour process. Dress comfortably but still look presentable. Be aware that higher end items, such as an expensive watch or purse may lead a seller to think you have more money than you actually have and it may affect the negotiation. Always wear socks as you may be asked to take off your shoes in certain homes. Dress in layers so you can be comfortable no matter what the temperature is in the home.
Before pulling out your phone to take pictures or videos, ask the seller's realtor if it’s okay. While it’s expected during the process, it doesn’t hurt to take that extra step. While it’s important to check out the size of closets and other storage spaces, don’t go through people’s personal items or spaces, such as a dresser.
Remember, that in most cases, someone still calls this place home. While you may have opinions on the house and its furnishings, keep them to yourselves until you leave the house. Someone may overhear your comment, such as a neighbor, friend, agent, or the seller themselves, and it may come back to bite you if you end up in a bidding war.
While making small talk is good, oversharing your personal details may have a negative impact later. For example, sharing that you need to be out of your home by a certain date and are desperate to be in your new home soon may affect the negotiation process. Be polite, but keep the details to yourself.