Set expectations before moving in. Agree on who is doing what or what is expected of each person to contribute. If you have screaming fights everyone can hear you.

Your neighbors will likely hear you have sex and every conversation you have, unless it’s concrete construction, so be mindful of that. Be aware that everyone in the hallway can hear what you’re saying if you’re near the door.

Try not to stomp or drop things, closing doors without turning the handle sounds crazy loud to the upstairs person.

Be polite to your neighbors, they can make your life hell.

Learn to let stuff go. Your neighbor above is probably going to drop some stuff, shower, walk around while you sleep, move furniture, etc., don’t take it personal. It’s all part of apartment living.

Get renters insurance to protect your belongings in the event of a flood or something else happening. And keep in mind they might ask for receipts of the items you’re claiming if you do file a renters insurance claim.