Adolf Hitler's theatrical rhetorical style has often been pointed to as a reason why he so captivated voters and observers. In most of the speeches I've seen, he is largely fiery, passionate, melodramatically angry. Obviously there's an element of expectation and selection bias here. My question is, did humour ever play a role in Hitler's public appearances? Of course his speeches have been much mocked and caricatured now, but do we have any recorded instances of him telling jokes or using intentional comedy during his engagements - or was that counter to his desired image?
A good resource on all things Hitler is the wonderful biography: Hitler: A Biography, by Kershaw.
I think in general, Hitler was not the life of the party. Kershaw describes him as being somewhat uncomfortable in social situations as a young man when he was with people outside his peer group or the NSDAP, particularly his "social betters." He came off as a bit of a boor to upper class people that he socialized with in his early years. Nothing extreme, but he was not a charmer in those situations. Probably not all that different than someone from the middle class all of the sudden socializing with a higher strata of society. This was particularly true around women, to whom he is described as being extremely deferential and overly chivalrous, to the point of being awkward. The reminisces of close Hitler friend and socialite Ernst Hanfstaengl and his wife are really illuminating about Hitler's demeanor in social situations before he came to power.
He is also described as not being very humorous as a soldier in WW I. That doesn't mean he was disliked, from the accounts I have read of other veterans who served with Hitler, it seems that he was respected and generally liked pretty well. He was a good soldier and generally a good member of his unit, he just didn't engage in a lot of the usual soldier joking and teasing that would be common.
Hitler is consistently described as relatively nice and good humored towards his secretaries. Almost always very understanding and courteous towards the group of women that worked closely with him. This is an interesting contrast to Churchill, who is often described as being extremely difficult to work with, often a terror towards the women who worked for him in similar capacities. Of course Churchill is also famous for his sharp wit and quick tongue, whereas Hitler generally is not know for making clever jokes.
Albert Speer's autobiography is also a fascinating look at Hitler the man after he came to power (even as it is well documented that his biography is self serving in other ways). Speer viewed himself as socially superior to Hitler, even as he idolized him. He describes in some detail the dread he would feel at being invited to stay with Hitler's inner circle to have dinner and socialize. These evenings often devolved into Hitler going on long boring monologues about whatever he was interested in. Speer also moaned about how Hitler enjoyed American popular movies, and how they would constantly watch the same movies over and over and over again. Speer typically tried to have an excuse to not attend these occasions.
tl;dr: If you were at a party with Hitler he probably would not stand out as a particularly funny man.