The scene could have gone something like this:
Yoda "Agitated am I, that understand Wookie babbling and howls I can not. What to do? How to react? Difficult to see."
Boy Solo "Gosh Mr Yoda sir. I speak Wookie talk real good. Can I help you?"
Yoda "Surprised am I to see a human youngling here amongst all the furry Wookies. An interpreter for me I'd like."
Solo (with big goofy kid grin) "I know I am just an 8 year human boy, but I know how to track down that bad cyborg robot thingy. Chewy showed me how to use all the elaborate computers here on Kashyyyk last week. Wanna see?"
Yoda "Strong I am with the Force. Understand this Kashyyyk computer system I can not."
Solo "Ok then. (Han fiddles and types on a computer console) See Yoda sir!? General G is right there!!!"
Yoda "Shown up by a scruffy 8 year old child reared by Wookies....How embarrassing."
Solo (smiles) "Ha-ha!!"
Yoda "Mmmmmmm. Surprising in the ways the Force works. The wookie, stay with him, you must."
Solo "Ok. Bye!"
Yoda (gazes fondly as the boy leaves the room)