you were a muggle and y'all are in the muggle world and you were friends with harry not knowing he's a wizard and when y'all are alone you speak "hey Harry?"

Harry: "yes?"

You say "I've been having these dreams"

Harry: "what kind of dreams?"

Then you say "I see a boy..."

Then you say "who looks like he's in danger..."

Harry looks at you confused as you keep speaking "crying... And he has no one by his side..." Harry realizes your talking about Draco who you don't even know

Then you say "there is a red-haired boy... Dead..." He realizes your talking about Fred Weasley who you also haven't met

Then you speak again "then there's an old man... Falling from the top of a tower.." Harry realizes your talking about dumbledore who you also haven't met them you tell him you've had several dreams like that

Harry: "I have a question..."

Harry: "you wouldn't happen to be a witch/wizard by any chance?"

Then you ask him how then you say "what are you talking about? Wizards don't exist silly"

Harry: "yes..."

Harry: "yes! I know, I was just joking" you laugh and harry looks concerned and like he's about to cry y'all are at a restaurant none of the stuff you explained to him happened yet so he excuses himself