How should I prepare for viewing a potential home?

I’m in the process of finding a home, and I’ll be looking at a house today! What should I do to prepare?

I realize I should dress nice, and look clean etc, but is there anything specific I should or shouldn’t wear? Are there any documents I should bring? Anything I should avoid saying? Anything I should make sure to say? Should I mention that we are musicians(but will of course talk to neighbors to discover the best time to practice)? Any other suggestions are also welcome. Thanks!!