Name: Natasha | Who: your best friend | Where from: Russia | What for: live next door
This is Natasha, she's my best friend from Russia. She lives next door.
Name: Mary and Anna | Who: your nieces | Where from: Australia | What for: competition
These are Mary and Anna, they're my nieces from Australia. They have a competiton here.
Name: Liz | Who: your friend | Where from: the USA | What for: study
This is Liz, she's my friend from the USA. She studies here.
Name: Audrey | Who: your daughter's friend | Where from: France | What for: your guest
This is Audrey, she's my daughter's friend from France. She's our guest (or: She came to visit us).
Name: Danny and Ron | Who: your nephews | Where from: Spain | What for: travelling
These are Danny and Ron, they're my nephews from Spain. They are travelling here.
Name: Oliver | Who: your father's cousin | Where from: Germany | What for: your niece's wedding
This is Oliver, he's my father's cousin from Germany. He came here to my niece's wedding.
Name: Peter | Who: your cousin | Where from: Poland | What for: on business
This is Tom, he's my cousin from Poland. He is on business here.
Name: Bobby | Who: your сolleague | Where from: Britain | What for: new project
This is Bobby, he's my colleague from Britain. He has a new project here.