This is an emoji with big round eyes,and a hand over its mouth. It is a new emoji belongs to Emoji 14.0 which released in September 2021.
means to cover your mouth, not to speak, to mute, shut up, 'oops'. Sometimes people will also use this gesture when they feel disbelief, embarrass amazed or surprised. It is similar to this emoji 🤭
, but more negative. Related emojis: 🤫