Try this:
/petsay_all <em dance>
and insert any emote you want in place of dance.
paragonwiki.com/wiki/Known_issues#Colored_Speech_Bubbles_and_Petsay
Speeding Through New DA Repeatables || Spreadsheet o' Enhancements || Zombie Skins: better skins for these forums || Guide to Guides
Aww. Sadmaking. 
At least there's a (chunky) workaround.
Try:
/petsaypow Zombie <em afraid>
That should make a pets summoned by the Zombie ability do the afraid emote.
Alright, I've read the guide on this, and fiddled with it, but to no avail.
I know about Binds, and loading binds, and so forth; I'm down with that.
But what's the format for Petsay to get my pet to do an emote?
I can get them to *say* stuff - but I was them to, for instance, cower in fear.
I can /petsaypow Zombie e afraid ... But then they all say "e Afraid", which is not quite the effect I'm going for here.
Any suggestions / advice much appreciated.