How do you fake laugh? (acting)?

Hi. Long story short i'm in a play, i have to laugh very loudly on command and I can't figure out how for the life of me. My natural laugh is silent so this is new. When I try I just end up squeezing my throat and chest really tightly and running out of breath within 2 seconds. What are ways to fix that?... show more Hi. Long story short i'm in a play, i have to laugh very loudly on command and I can't figure out how for the life of me. My natural laugh is silent so this is new. When I try I just end up squeezing my throat and chest really tightly and running out of breath within 2 seconds. What are ways to fix that? Thanks in advance
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