Scene: AJ and Rhiannon Watching TV
Carmela: Oh, listen, we're not eating at home tonight. I thought we'd go to Holsten's.
[Rhiannon looks up in acknowledgement.]
At this point, Rhiannon is the only person, outside of the family itself, who knows where the Sopranos will be eating dinner.
Scene: Tony Visiting Junior
The most important component of this scene is easily missed. It is the board behind Junior that has various bits of information for the benefit of the patients. The board is only visible very briefly as Tony leaves.
The particular piece of information that is relevant is the statement: "NEXT MEAL: SUPPER." Note that the chosen word is "supper," not "dinner". This is a reference to the "Last Supper," the final meal of Jesus (from Christianity). The relevancy of the reference is two fold. First, Tony is on his way to his final meal, his "last supper". Second, some of the symbolism used in the final scene has its origins in the Last Supper.
[Tony selects a song from the booth jukebox: Journey's Don't Stop Believin'. Carmela enters Holstens.]
Carmela: Mead's coming separately. She had to go to the doctor - switch birth control.
This is interesting and relevant because of what is keeping Meadow away - in some sense why she is not at the table when everyone else is killed. She is not directly with Patrick which suggests that Patrick may not know where she is. This further strengthens the point that Patrick is not involved with Patsy betraying Tony. However, since she is engaged to Patrick and she is away switching her birth control, it is her relationship with Patrick that prevents her from being at the table. This scenario again suggests that Patsy is taking extra precaution to ensure that Meadow is not hurt during the murders.
[AJ comes through the door immediately behind the "Members-Only" guy.]
The Members-Only guy is a Mafioso. AJ and Members-Only guy coming through the door together is symbolic of AJ "bringing" the murderer to the restaurant through his relationship with Rhiannon.
Carmela: You may not realize it, but you are making contacts.
This is significant dramatic irony. AJ is making contacts and he does not realize it. Only the contacts he is making are those that will result in the tables impending death.
Tony: It's an entry-level job.
Simple enough, right? Not so. The "entry-level job" additionally refers to the "job" that Members-Only guy is about to perform. The murders are going to enable him to "make his bones" and become a "made man." The point of making this connection was the entire raison d'etre of Episode 80 (Remember When) in which Tony recalls how he became a made man by committing a murder at the age of 22. Now, Tony's life as a made man has come full circle. After a reasonably long life (for a mobster), he is about to the die the death of a made man. And in so doing, he is going to enable his murderer to achieve "made" status. Finally, herein lies the real meaning of the episode's title, Made in America. This endless, self-perpetuating cycle of death and destruction is what it means to be Made in America.