I forgot how to laugh

(8:17:59 AM) nurrwick: yabbos
(8:18:07 AM) Jeff: haHA
(8:18:30 AM) nurrwick: hoHO
(8:18:45 AM) nurrwick: HoHo
(8:18:49 AM) nurrwick: HOho
(8:18:51 AM) nurrwick: :(
(8:19:04 AM) Jeff: ?
(8:19:10 AM) nurrwick: I'm doing it wrong