I love this because you can read his lips and look at his hand gestures and just know he’s saying “Oh look it’s daddy, hiiiiii!!” and who the fuck says that to anyone without using a patronising baby voice?!

So really; Sherlock is using a baby voice to try and teach Rosie works and hand signals so she responds well to him and isn’t that just some fine character dovelopment RIGHT there

the abominable bride
  • mycroft: john, take good care of him.
  • john: *nods*
  • mycroft: john, TAKE GOOD CARE OF HIM
  • john: yes ok, i will.
  • mycroft: *winks*
  • john: ???
  • mycroft:
  • mycroft: john are you getting this?
  • john: getting what? you want me to take good care of sherlock.
  • mycroft:
  • john: am i not getting something?
  • mycroft: john. *wink* take *wink* good *wink* care *wink* of *wink* him *wink wink wink* would you?
  • john: o-o
  • mycroft:
  • mycroft: you aren't getting this, are you
  • john: ummm
  • mycroft:
  • mycroft: *shaking john's shoulders* MARY NO SHERLOCK YES DUMP MARY SHES BAAAAAAD DATE SHERLOCK HES GOOOOOOD.
  • john: o_O
  • mycroft: *pouts and stomps off the plane and once he's outside, screams*