How to treat your long lost brother/sister?
b kind and depending on the situation don't b to clingy itll take time to b close a hug hello might b ok but don't b to straight forward u got to earn trust first just like anyone else
like a brother/sister
I'd get to know them like a friend, but treat them like respected family. Ask them they're favorite things and relate to them to get a conversation going, instead of an interview.
like family, spend some personal time with them so that you grow to know each other & strengthen your bond.