frumu -fru- gismu

x₁ frowns/grimaces (facial expression).

x₁ frowns/grimaces at/in reaction to x₂ (= frufra). See also cmila, cisma.

jbovlaste

In notes:

cisma: x₁ smiles/grins (facial expression).
cmila: x₁ laughs (emotional expression).
ri'orfrupo'a: x₁ is a Creeper, the exploding green monster from the video game Minecraft.