When Angela hugs Dr. Saroyan, her arms are over Dr. Saroyan's. In the next shot, however, Dr. Saroyan's arms are over Angela's.
The Dutch word Ingrid VanderLubbe mutters during the interview with Booth is "wekroep" that is a concatenation of the two words: "wek" and "roep", which literally translate to: "wake-up" and "call". However she pronounces it as "we" and "kroep" (two otherwise correct Dutch words), as if she was saying in English: "wa kupcall". Moreover, the word "wekroep" is hardly ever used in modern Dutch.
If Tim truly was a sociopath, as Dr. Sweets observed, he [Tim] would not have been able to truly love his mother enough to kill for her (sociopaths cannot feel emotions/express emotions), and he certainly would not have been able to cry over her.
In this episode, Angela mispronounces McLean (as Ma-clean instead of Ma-clane). Anyone living in the DC area would know how to pronounce the name of this well-known suburb.
Bones mentions the famous chess game between Marshall and Levitsky. Except she incorrectly says: Levinsky.