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...
Would probably be 
satisfied with the sand
غالباً سوف يكتفي بالرّمل
Ihm würde der Strand reichen.
Sería feliz
en la arena
Sería feliz
en la arena
S’AMUSER DANS LE SABLE
LUI SUFFIRAIT
Tutto contento
  sul bagnasciuga
Prefere ficar
na areia
Скорее всего, будет
только копаться в песке