Let's see...
Altmer - would start conspiring with the Bosmer, while sneering at everyone else
Bosmer - would conspire with the Altmer, while reading the book "12 delicious Merrish recipes", thus making everyone else in the room highly uncomfortable
Dunmer - would secretly sharpen a knife stolen from the Bosmer, looking for the best parts to stab it
Orsimer - would start hogging all the furniture in the room and pile them up in a corner, while hiding under them
Maormer - would look for a bathtub, then try to murder the Altmer
Falmer - "you gotta try these shrooms, maaaan..."
Dwemer - Mzrumgflgpthcthanzg
Ayleid - would try to kidnap the other Mer
Aldmer - *teary eyes* "They grow up so fast..."
Left-handed Elves - "Who the hell are these guys?"
I got only ten...
"Ten Little Mer?"