the scene of john and sherlock mouthing at each other (where basically john saved sherlock the embarassment of confusing lestrade’s name one more time)
and… sherlock finally getting it right
john in the background wrapped in a blanket (precious smol bean)
sherlock finally wearing the damn hat
sherlock with a baby awww
jim fucking moriarty owning it even in flashbacks
john wishing sherlock “happy birthday” (can we talk about sherlock’s face please?)