Actions are anything a character can potentially do under the proper circumstances.

AIRDROP
APPEARANCE
ARREST
ASCEND
ATTACK
BIRTH
BREED
BROADCAST
CAPTION
CLAIM
CLOAK
CONSTRUCT
CONSUME
COPY
DECLOAK
DESCEND
DRILL
ENTER
ESCAPE
EXIT
EXTINGUISH
FARM
FISH
FORAGE
HARNESS
HEAL
HERD
HUNT
LAND
LAUNCH
LOCATION
LOG
MANUFACTURE
MARK
MIGRATE
MINE
NURTURE
OPERATE
ORBIT
OUTFIT
PLANT
PRESENT
PROSPECT
RECYCLE
REFINE
REFIT
RELEASE
REPRODUCE
RESEARCH
REST
SKIP
SKYDIVE
STEAL
STUDY
SURRENDER
TAKE
TAKEOFF
TAME
TEACH
TRANSPORT
UNMARK
WAIT
WARP
WORK
ZONE