亻
=
丿
+
丨
:
Mnemonic symbol: Rosa Luxemburg. She's quite radical, and her name starts with "r", just like "ren2". Also, 亻appears at the left-hand side of characters, and Rosa is a leftist as well.
Robinson Crusoe (r) and Rosa Luxemburg (亻) are having their favorite snacks in the encampment's kitchen: Rosa is eating a banana (丿) and Robinson is eating a dinosaur bone (丨).
舌
=
千
+
口
:
Sherlock Holmes (sh) used a kilogram (千) to crush mandarins (口) on the elevator's kitchen (e2) counter. He's licking up the juice with his tongue (舌).