When Lilah is visiting Wesley she folds her arms but they are uncrossed when she turns around.
When Meerna is closing the "portal" in the hotel and Lorne asks her if they should get behind something the camera shows Groosalug putting his arms crossed so that his fingers are under his biceps. On the next shot his left arm fingers are on his right arm bicep.
When Angel and Connor are running from the police they hide behind a car on the side of the road and part of Angel's reflection (specifically the side of his head and ear) is briefly visible in the car's rear view mirror when he pokes his head out to check if the coast is clear.
Connor has an unexplained American accent despite having been raised by Holtz, an Englishman, in a dimension with no other humans.