Ben sat down next to the man and said "Don't worry. I'm not gonna hurt ya. You just look tired and dehydrated is all." Ben laughed a little and said "Jeez buddy you must have been dry. If ya need another let me know, just try not to choke."
Ben perked up and said "THE Bruce Banner? The gamma radiologist? I've read some of your older published theories. A lot of it makes sense to me. I always wondered if your research could help me with not lookin like an overgrown terracotta pot." Ben noticed the lack of a shirt and the shorts and figured out that Doctor Banner was the Hulk, but he didn't say anything about it.
"Hey Doc. You're gonna catch a cold if you don't get some clothes. You got a place around here? I can walk with ya to make sure nobody tries to mug ya." Ben wouldn't rat him out. Besides, oddly colored giants had to stick together. The orange skinned brawler was more interested in talking to Bruce Banner than the Hulk.