I like how there's always someone in at least each episode who is forced to pull an expression of absolute confusion or offence because of something Jane does. Whether it's a copper or a suspect or even someone on his own team. Someone always gets won over by him in some mediocre way... I like how this breaks up the actual case he's on. His little antics. The mischievous side to his personality is what I like the most about the character, and his calmness with the mischief - as you pointed out CGSA - also adds to it. His indifference perhaps?
Favourite moment so far that I've seen was the episode in which- Made me laugh that did. His crew's all off investigating and he's doing that. Hilarious...
Favourite moment so far that I've seen was the episode in which
he builds a massive sand castle