"person" radical in Chinese characters (Kangxi radical 9)
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).
栗
=
覀
+
木
:
Li Qingzhao (li) is beating chestnuts (栗) off the Christmas tree (木) in the space station's bathroom (Ø4) using a knuckle duster (覀). She beats them so hard that the chestnuts open the very moment the knuckle duster hits them.