Submitted by David1192 t3_10inpk1 in explainlikeimfive
LeviathanGank t1_j5gicij wrote
Reply to comment by Remarkable-Owl2034 in ELI5 Are facial expressions and reactions like laughing learned, or do all humans do it? by David1192
yup my baby laughs when having fun but also laughs like a mad man when we laugh, i think its both natural and copy mechanics..
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