the fan told jeno theyre envious of his younger fans because she wanna call jeno oppa too. bxbxnd the way he chuckled and said "okay call me that then" hes so...

^ starts at 0:12

before that the fan asked "what kind of bread (빵) am i thinking?" and then made a pun with 빵(bread) and 제노 오빵 (jeno oppang/cute way to say oppa) and jeno went

this is how the call started:

op: 까꿍 (peekaboo)
jeno: 까꿍
op: soft puppy jeno hi!
jeno: we meet again
op: if you remember me, blow me a kiss
jeno: (blows kiss)
op: you do remember
http://weibointl.api.weibo.com/share/149497799.html?weibo_id=4509292701132201

op: jeno oppa i love you~
jeno: me too
op: as expected jeno oppa is the best

op: how do you want cfans to call you?
jeno: ....jeno?

op told jeno cfans call him 诺诺 (nono) and taught him a phrase in chinese:

"诺诺 is the noonas' cutest baby"