Honestly, as you cosplay as the character longer you will just stop laughing. You'll be in cosplay for a few hours and just get use to it. As for photos, be AS IN CHARACTER AS POSSIBLE! Honestly just try to pretend that you actually ARE the character. However, if that makes you laugh more just think of something extremely serious until the photo is taken.
Trust me, once you are wearing the cosplay for a while you'll just get use to it ^^
-Mako (Kill la Kill)
-Popstar Ahri (League of Legends)
-Jill Valentine (Resident Evil 5)
-Poison (Final Fight)
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