Answer: giggled

AnswerCrossword Clue
GIGGLEDReacted with embarrassment, maybe
GIGGLEDLaughed nervously, maybe
GIGGLEDLaughed a little
GIGGLEDReacted with nervous embarrassment, maybe
GIGGLEDCracked up
giggledGIGGLE, to laugh in a silly manner
giggledLaugh lightly in a nervous, affected, or silly manner