Manifests Empathy, trying to suppress the mental display:
concentration DC 15 1d20+3 : 6 + 3, total 9
Also, two sense motive checks. He will end the Empathy effect immediately after manifesting it for a +2 to these:
SM vs. Red 1d20+13 : 5 + 13, total 18
SM vs. Blue 1d20+13 : 19 + 13, total 32
So overall, he'll quickly assess their surface emotions using his power, and then using his own insight into the motivations of people, try to assess their sincerity.