Souma is really susceptible to cracking up, and even memories will put him into laughing fits. But being self-conscious about this, he always tries to hide it. When he does this again at a clothing store his friend works at, the friend asks him why he does that, especially when it's so easy to tell anyway. Later, Shun also repeats the same sentiment...
You self-conscious or something?
هل هو الخجل أم ماذا؟
Ti preoccupa in qualche modo?
Se preocupa com o que vão achar?
Стесняешься, что ли?