"Sure, I'd be glad to." Bruce wasn't making any headway with his own testing on a cure for the Hulk. He might as well be useful to a problem he might be able to solve more readily.
There's a hint of a smile, Bruce was still unused to having friends willing to help and stand up for him. He had only just gotten used to not being on the run and staying in the mansion. Now and again, that paranoia of being caught or followed would surface but it was getting better. "You know about my...'condition' then." He pulls out his reading glasses to get a good look at these parts and how they fit together into the serum gun.
"Could I see a sample of your blood under microscope?"