(???):there you are!!
Lin :eh do i know you?
(???):sis are you joking it's me Chen Li did you hit you're head that you forgot you're own brother!!!
Lin :oh of course i did not forget you!!! i was just joking hehehe
( in Lin's mind):i almost blown my cover!!! i gotta be careful from now on.
( in Chen's mind): sis kinda seem weird
Chen: let's go home sis father might be looking for us!
Lin: oh ok let's go after you!
(Lin):i don't know where do i go so let's follow him!