I’m going to be that asshole who adds commentary (sorry OP), but we need to talk about that last gif:

Captain America, Captain friggin’ America has just shown up at Sam Wilson’s house with a friend in tow and what does Sam do besides let them in without hesitation? He checks the friggin’ perimeter. He doesn’t even know Natasha outside of a “hey” and only barely knows Steve, and yet he’s doing something to guard and  protect them. He’s making sure there aren’t any obvious threats on any side of the street within his line of sight, or if anyone has obviously followed them. It’s yet another tiny but significant thing that says so much about Sam, and his character, and how pretty much right there on the doorstep when he places trusts in Steve because he’s Steve, that he makes the decision to fight again. He essentially lets these two go wash up, rest, and makes them a meal while taking first watch. Never, ever deny the importance of Sam Wilson and what he represents.

I fell in love with him in his second line. Seriously. Second. Line.

Sam Wilson better be in age of ultron seriously he is one of my favourite characters