I stopped singing and noticed my neighbor on his porch
Did the neighbor enjoy your singing?
I don't know, my neighbor is always trying to get along with my friends and that's just not cool.
It is okay to be on their property but your neighbor shouldn't have been spying on you. You deserve privacy.
I'm going to scream at them because I'm so pissed
Calm down and tell your neighbor to respect you and your friends privacy. This could all be a simple misunderstanding and your neighbor is just trying to get to know you. Be friendly and they'll be friendly back.