To have liked to be warned/told.

Yes I agree. If we were ever having 'a bit of a do' we always told the neighbours on either side and told them to feel free to pop in for a drink.

As you are on neighbourly terms it would have been thoughtful to let you know and to say you would be welcome to pop in for a drink!

Some folk are just a bit thoughtless/ busy..or maybe everyone next door thought someone else had spoken to you.

I would pop round to them with a birthday card and say you heard everyone having a great party!

It would have been courteous to let you know what they planned. Even nicer, if they had said, "If we are noisy, pop round and have a noggin with us" My neighbours occasionally have a gathering on a nice evening. It can be noisy and late, but I would feel mean to complain, as it doesnt't happen too often.

It was rather rude not to warn you and if you get on well, even more rude not to invite you to pop round.

Some people are just thoughtless. of course, it would have been courteous to have been told and even to have been invited to pop in for a drink.