Meaning of hē hē:
hē hē
呵呵
Onomatopoeia
(onom.) gentle laughter; chuckle
Tīng dào zhège xiàohuà, tā rěnbuzhù “hē hē” xiàole.
听到这个笑话,她忍不住“呵呵”笑了。
Hearing the joke, she couldn't help but laugh "he he."
Tā tīng dào le zhège xiàohuà, rěn bù zhù hē hē xiào le qǐlái.
他听到了这个笑话,忍不住呵呵笑了起来。
He heard the joke and couldn't help but chuckle.

