That interest definitely makes Steve's smile light up. "Yeah? I haven't seen it." But if Bucky wants to do it? Count Steve in.

Plus, he... has pretty much zero place for his energy to go. He doesn't go to the gym much, and since he has to be let into the Enclosure, he doesn't ask much. Not for his own sake. An obstacle course sounds, well, amazing.

"Let's try that tomorrow. Instead of this," he decides, since Bucky mostly still seems on board with Steve suggesting things in ways that make them sound slightly more like orders. Even if he's still not sure he should be ordering Bucky around, this does seem to be one he'd want to follow.