These two clips also show a marked difference in body language, communication of tatemae / honne, and spoken language. Here too, the crucial factor in these distinctions is whether those communicating are members of the same uchi, (Kato and Fujita) or whether uchi members are communicating to soto outsiders. (Ms.Morimoto and Ms. Miller).

Clip 3: Uchi / Soto Communication: Ms. Miller is a (distant) soto relationship because it is her first visit to Yamamori Research Institute.
Body Language: Ms. Miller bows as she enters the door, and at the close of their short conversation, both women bow. Both stand upright directly facing each other, and they do not joke or laugh.
Spoken language: Ms. Miller announces her entry by explaining her own name and affiliation, then asks if Mr. Ito is in. In this question she uses 'irassyaimasu', a polite form of the verb to be, which indicates both distance and deference. (Her use of this form signals that she is soto, just as clearly as if she were saying this literally). In the reply "Hai orimasu", Ms. Morimoto uses a humble form of the same verb in reference to her colleague, Mr. Ito. (This also clearly signals that both she and Ito are members of uchi.) Throughout this scene both speakers are using language that is polite toward the other, and members of the other's group, and humble toward themselves and members of their own group. This use of deference clearly signals the uchi / soto boundaries between them. This usage also occured in Carter's communication in Clip 1.

Clip 4: Uchi Communication:
The degree of attention given to formal, polite, and tatemae communications between outsiders and insiders in Clip 3 means that different communications could also be taking place behind-the-scenes of these "guest encounters". This is exactly what we see happening in the second clip, which begins by showing a foreigner, who has just been employed as a part-timer in a university research group. Since she is a newcomer, she is sitting in the seminar room, (a "front room" where guests are invited), getting oriented to her job. The camera then follows Kato, as he walks down the hall and into a graduate student room (a "back room"). The interaction that follows is a distinct contrast to that in Clip 3.
Body and Spoken Language: Kato does nothing to announce his entry, but walks over to the desk of his fellow student, Brown, and leans over her as he starts talking. She doesmt acknowledge his entry either, and they begin conversing without any bows or introductions that mark the conversation beginning in Clip 3. Kato's opening "Ano gaizin dare?" (Who's that foreigner?) is answered by Brown as she breaks into a laugh and fills him in. Many aspects of their communication let us know that Brown and Kato are close colleagues. Notice the parallel movement of their bodies, and how their expressions (relief and laughter) move from one to the other. They are also expressing a bond as "insiders" vis-a-vis the new part timer, who is an outsider.Clip 4 is striking by its familiar (and abbreviated) use of language. Verbs are almost completely omitted altogether (only one is included; Brown's use of 'da ', which is a more familiar form of 'desu ').
Tatemae / Honne: Honne feelings are expressed, in the informal language of this scene, just as much as in the laughs and body language. Someone overhearing this conversation would understand that these speakers are "close"―in fact, members of the same uchi ―and know each other well.