As was requested, here is a full list of all the emotes.
I'll put them here for now, so I don't have to clutter the description with them.

--Friendly
/wave
/cheer
/dance
/robot
/salute
/poke
/hug
/kiss
/clap
/flirt
/cheerup

--Greeting
/greet
/welcome
/shout
/bow

--Feelings
/happy
/sad
/angry
/scared
/insane
/like
/dislike
/love
/hate
/bored
/party
/confused
/annoyed
/epic

--Answering
/agree
/disagree
/act
/shrug
/maybe
/thanks
/yw

--Conversation
/ask
/away
/brb
/back
/wb
/talkabout
/talkto
/mention

--Sad
/sigh
/cry

--Rude
/slap
/push
/spit
/fart
/insult
/curse
/rude
/complain
/stomp

--Funny
/laugh
/joke
/funny
/silly
/boop

--Weird
/lick
/pony
/zombie
/muscle
/lenny
/derp
/evil

--Animals
/bark
/meow
/chicken
/sheep
/bunny
/pig

--Commands
/forward
/halt
/wait
/group
/point
/come

--Other
/question
/beg
/giveup
/facepalm
/hide
/pet
/scratch

There are also some synonyms to make it easier to find certain emotes, for example, "/yay" will show the same emote as "/cheer", and "/hi" will show the same emote as "/greet".