Steve could see the hesitation, the inner battle.  If Bucky walked away now he would be no closer to finding out who he was.

Nodding at the decision, Steve moved slowly as he walked back to the bench and reclaimed his seat at one end, wanting to give Bucky as much room as he could.  “So you saw the exhibition, but I guess it didn’t really answer enough questions.”  How could it?  It couldn’t give the personal details, couldn’t accurately describe the person Bucky had been.  Now was his chance to ask, though, and if he remembered anything about Steve he should know that the answers would be honest.