List of emotes, everything on one row create the same emotes in pms:
: ) ( : :smile:
: ( ) : :frown:
: o :surprised:
: D :smiley:
x d :laugh: :laughter: : xd :
:thinking: :think:
: 3 :nya: :nyan:
: p
; ( :cry: :sad:
:spook:
:eggplant:
: peach :
< 3 <3 :heart: :love:
:angry: :angery:
; ) :wink:
:sick: :bleh:
: poop : : poo :
:tired: :tired_face:
: hearteyes : :hearteye:
Okay that's some awful formatting and it won't let me increase spaces between row elements, but remove the spaces when necessary, I have those to prevent it from picking up emotes on the forums. (Nothing is just one character - ";" will not give you an emote, neither will ")". When I have spaces after and before colons, remove both spaces, the forums use the same emotes in the same style)
Disclaimer: This is the list I received from a Dev, not sure what additional ones there are besides the ones in kaz's post above (ie. :junz: and :imask: )
Edit: :junz: and :imask: do not work