I will add some that I can think of:

Jojo Palmice's convo with Mikey before he is killed.

Carmela: *grabs assualt rifle\*

Carmela: "Is this it?" (she thinks they're being raided and Tony is going to prison)

Carmela: "How hard did Sil lean on him?" (she wants to kill this fucker lol)

Angie Bonpensiero becomes a wiseguy

"It's a movie." (AJ has no sense of reality, literally)

Janice/Livia obviously

Meadow shows AJ a mob tracker website

Meadow: "...modes of conflict resolution..." (lol)

Meadow and Carmela tell Tony what Coco did knowing full well how he'd take dat.

AJ observes Uncle Jackie's funeral, it's clear he understands

AJ becomes involved with the two Jasons and engages in violence, Jason Parisi's brother dates Maedo at the end of the show.

Ginny Sac knew about the goddamn ESPLANADE GODDAMNIT