Was watching :live-tucker-reaction: in the gym (They're enlightened centrists who play both chud and lib news on the tvs) and he's constantly doing this clearly fake-ass laughing and smiling to show how "above it all" he is, when everyone knows he's a pretty humorless prick irl.
It's the same reason chud Youtubers will almost always have themselves in the thumbnail laughing or with glowing red eyes or some shit: Because to them, caring about something enough to be "mad" or "upset" about it is the ultimate show of weakness. So to desperately convince everyone how not-mad they are, they overcompensate by forcing laughs and smiles when it's fairly obvious that's not how they're actually feeling.
I would honestly respect these guys more if they just went full :frothingfash: 24/7 instead of the transparent disingenuous smugness.
The only actual right wing value is domination, and if you're mad then you're not dominating, and the only imaginable reason to not be dominating is if you're getting dominated instead and are therefore not fit to be among the worthy. Forced smugness is how they reassure each other and themselves that they're not in the process of becoming corncobs.