(pronoun) this; these / (bound form) this; the (followed by a noun) / (bound form) this; these (followed by a classifier) (in this sense, commonly pr. [zhei4], esp. in Beijing)
这
=
文
+
辶
:
James II of England (zh) is carrying a heavy book (文) in the elevator's bathroom (e4). This (这) book is so heavy that his gladiator sandals (辶) are sinking deep into the sand.
咱
=
口
+
自
:
In the anthill's kitchen (an2) Zorro (z) is looking into a hand mirror (自) while treating his skin with mandarin oil and declares: "You and I (咱), my dear friend, are really beautiful!"