[You're Bucky's little sibling he is introducing you to the rest of the Avengers]

Bucky:This is my little sibling [Bucky introduced you] Steven Rogers/Captain America:Hello [He says friendly while he smiles] Black Widow/Natalia Alianovna:Hello Falcon/Sam Wilson:Hey [He smiles] Hulk/Bruce Banner:Hi Spider-man/Peter Parker:Hey Thor:Hi Hawkeye/Clint Barton:Hi kid [He says like he doesn't be here] Ironman/Tony Stark:[Nothing] [Bucky nudges you to say hello]