<llama> you guys won't believe what just happened
The most common physical articulation of the heh involves slight movement of the head, either foreword or backward, accompanied by a facial expression particular to the heh.
During the heh, the jaw drops slightly, causing the lower lip to cover the bottom row of teeth, while the top row remains revealed in most specimens. Although this could appear to create a comedic smile or silly face to an untrained eye, those who practice the heh insist that these misconceptions belie its true meaning.
Although material symptoms of this phenomenon can be confined to the face, head and neck, quite often the heh also involves movement of the arms. In such cases, slightly clenched fists vacillate within inches of the face, and, on occasion, an index finger is extended in the air.
The most unmistakable marker of the heh is its auditory expression from which the term derives its name. Emanating from the top of the throat, the proper pronunciation of the heh utilizes a short “e” vowel sound, and the first “h” is given different emphasis depending upon the speaker. Despite some superficial similarities to the common heh
Heh is a short reply, where usually the person who is typing it is feeling down or annoyed. Hardly a chuckle, in my opinion.
...All I could do is reply with a, "heh".
1) you don't know what to say
2) the person you're talking is making stupid remarks and you don't know what to say in return
person B: heh
person A: so do you want to toss my salad?
person B: heh no thx