Steve and Nebula
Nebula has watched Captain Rogers pose for photos and handshakes and conversation for the last half an hour. Not in a creepy, stalker kind of way, but with an admiration of his patience and positive outlook. She wore jeans, a plaid shirt and a pair of Converse. A small American flag was tucked in one of her back pockets, because that was part of the reason for the celebration, wasn't it? Independence Day. The humble man chatting with well-wishers was another.
He finally sat down with some food and a drink that was non-alcoholic, if she understood things correctly. Obtaining a similar drink for herself instead of another beer, she walked to the picnic table and sat across from him. She probably looked strange in her blue form - did plaid go with blue skin? - but her illusion would blend in nicely in this clothing. The Captain, of course, would see her true self.
"Felicitations on your natal day," she said in her husky voice.