Steve just shrugs one shoulder, trying (possibly poorly) to let the fact that Bucky just said his name slide nonchalantly by. His face is probably doing something complicated.

"I guess, but - if you need it, I want you to come get it."

He really doubts it'll ever happen, but he's got to make the offer.

"And there's - " He hesitates. "There's a robotics lab. And a warden who runs it. If your arm is ever damaged."

Frankly, he isn't sure it's not damaged now; Bucky had seemed okay two years down the road when Steve had found him, but that doesn't mean the arm was in great shape after their fight. And Steve knows how to run basic maintenance - on an arm this Bucky doesn't have. "His name is Elijah. He's a good guy."

Again, he's not sure if this information will ever be used, but he wants to make sure Bucky has it.