I'd like to start this entry by stating again for the record: That I'm no writer.
These entries are likely to be garbled, too drawn out and will never see a thesaurus.
That being said, let us begin, shall we?
Having had a lot of experience in stuff like this, I've had people ask me quite a bit about these topics.
I'm in no way an expert. Take everything I say here at your own risk.
My most recent version of this question came from my mother who explained to me that every night she would hear music and talking from the room next to hers.
She told me it scared her and she didn't know what to do about it.
I laughed and I simply told her "Listen."
Events like this come in all different varieties. My advice to her wont apply to all situations.
So let's lay out when it will and when it wont.
At any time that you feel like a situation is, by logic, very much a threat to you- always keep your distance.
By logic- I mean look pass the initial reaction of fear. Were you afraid because it was sudden, unexpected and eerie? Or were you scared because you felt threatened?
In my mother's case- all she heard was what was essentially a party. There's nothing that's very threatening about this situation. To hear a calm conversation nearby is also similar. Maybe even windchimes that don't exist, a radio, etc.
A friend once told me they could hear children calmly talking and playing in their room.
If you have an instance like this and you don't feel as if you're in danger- I normally encourage that you converse positively with spirits. Take care what you say, though. Keep topics positive and don't ask about death.
They may or may not hear you, they may or may not respond.
To hear yelling, a scream, a loud crash-- anything that sounds angry or makes you feel like you're unsafe- those aren't neccesarily very safe.
I can tell you "It's very likely you wont be harmed upon walking into the spaces those noises came from" however I don't know your situation, I don't know how dangerous that could likely be. So it's safer to keep your distance, especially if you're alone.
Personally if I have to go into a space like this, I'll either take someone, one of my pets, or- and judge me as you may, I knock.
Let me explain why.
In my mother's house she has a cocktail room that I call "The Ballroom.
In this room there's a very angry presense that makes me intensely uncomfortable. Once I open the door I feel like there's an invisible wall still in it's way and it makes me feel like I shouldn't be there. Someone doesn't want me to come in.
I tend to keep my distance from these rooms as often as I can if they aren't a neccesity, however sometimes it can't be avoided.
So I knock, open the door calmly, and politely say "Excuse me, I need to get something and I'll be right out of your hair, I apologize for interupting."
The extreme tension is still there but somehow I feel slightly safer as if whoever/whatever there is tolerating me for a moment.
I've done this ever since I can remember as I realized that we're sharing spaces/homes with these events, these spirits.
They're technically room/housemates.
After realizing that I developed a respectful attitude for spirits. I try to imagine, if they're real, if they see us, how would it make them feel to have a roommate they didn't sign up for?
I wouldn't want someone walking around the house I originally lived in and acting like they owned it. It was my safe place.
So there are some things to consider if you hear things and maybe even how to approach them.
It's always important to understand that not every spirit you hear wants to hurt or scare you. They're just doing their own thing.