David Havas (2010) gave people instructions to contract specific muscles – the muscles used in smiling. When the participants contracted those muscles they had a hard time generating a feeling of anger. When he instructed them to contract the muscles that are used when you frown, the participants had a hard time feeling friendly or happy.

https://www.blog.theteamw.com/2011/02/27/100-things-you-should-know-about-people-66-emotions-are-tied-to-muscle-movement-2/