Shows you don’t know, can’t decide, or don’t really mind either way; a relaxed male shrug.

Says you don’t know or don’t really care which way it goes, a neutral shrug that moves the convo along.

Shows you don’t know, don’t have a strong opinion, or can’t control the outcome; a casual “whatever” or “who knows” vibe.

Shows you don’t know or don’t have a strong opinion, a relaxed female shrug for “it’s up to you.”

Represents not knowing, not caring, or just going with the flow. The shrug says, “who knows?” or “whatever.”