Originally Posted by Wonton
Considering it took place less than 30 strips ago, I'm amazed at how little I remember it.
Anyway, I thought it would take me very long to find another one, but actually, there was one in the fourth strip I read: http://www.giantitp.com/comics/oots0302.html
Panel one, a guy is winking at the girl next to him.
Good catch, I never noticed that and it's actually a strip I've read frequently because I find it amusing.