Respuesta :
Well you don't shriek at a fun party or else people would call you weird XD, and you wouldn't growl because you're a human, not an animal, and again you wouldn't wail because you're a human, not an animal XD
Answer:
Giggles
Explanation:
Wail can be defined as to: "give a cry of pain, grief, or anger."
Shriek can be defined as a: "utter a high-pitched piercing sound or words, especially as an expression of terror, pain, or excitement."
Growl can be defined as: "of an animal, especially a dog) make a low guttural sound in the throat."
None of these pass a very good connotation, so we can surely discard all of them and use Giggles, which is: "a light, silly laugh."