Jimmy fallon is pretty funny
You mean James Thomas Fallon? I find him pampas. 
Why do you feel that way about him, he seems like a nice guy
Perhaps, but he is not runny. It could be because he is from Brooklyn New York and just has that New York attitude. 
Oh, I did not know there was a new york attitude
Yes, rude and stuck up. I have bot thought he was funny since he joined Saturday night Live in 1998.
Yes, he was very funny on there
He was on SNL for 6 years from 1998 to 2004. He didn't make me laugh once.  
Oh, I thought he was very funny on there
I liked him in the Taxi movie in 2004 but his film career only lasted 2004 and 2005. Who knows maybe I would have liked him ore if he did more films.