Pathfinder 2 is a 3 actions Encounter System. Below is a list of the actions you can post during encounters.

Reaction Actions
Aid (typically DC20)
Arrest a Fall (Acrobatics DC15)
Grab an edge (same as climb DC do take damage but less)

Manipulate Actions
Interact (use hands to do something)
---[sub]Invest (power up item. Item specified how many interacts to power up. No more than 10 items can be invested a day)
Release (drop item. Does not trigger AoO)
Activate an item (has to have been invested by you)

Move Actions
Crawl (5' if at least 10mv)
Drop Prone
Leap
Stand
Step (doesn't trigger AoA. Not into difficult terrain. 5' move)
Stride (single movement)
Burrow (if have burrow speed)
Fly (if have fly speed)
Mount (must be 1 size larger)

Attack Actions
Escape (vs grappled, immobilized,restrained)
Strike (single attack)

Misc Actions
Delay (bleed, poison, etc trigger immediately)
Ready (prepared single pulse action according to trigger of your specifics)
Take Cover (take benefit from near cover)
Raise a Shield (to use it in defense)

Sensory Actions/concentration
Seek (look around for something. 30' cone 15' burst)
Sense Motive (Secret perception)
Avert a gaze
Point out (reduces undetected to hidden)

Spell Actions
Cast a Spell (spell description details number of pulses)
Dismiss (end a spell effect)
Sustain a Spell (concentrate to maintain)
Sustain an Activation (concentrate to maintain an item activation)

During Exploration you can choose 1 activity your character is performing as you move along.


Reaction Actions
Aid (typically DC20)
Arrest a Fall (Acrobatics DC15)
Grab an edge (same as climb DC do take damage but less)

Manipulate Actions
Interact (use hands to do something)
---[sub]Invest (power up item. Item specified how many interacts to power up. No more than 10 items can be invested a day)
Release (drop item. Does not trigger AoO)
Activate an item (has to have been invested by you)

Move Actions
Crawl (5' if at least 10mv)
Drop Prone
Leap
Stand
Step (doesn't trigger AoA. Not into difficult terrain. 5' move)
Stride (single movement)
Burrow (if have burrow speed)
Fly (if have fly speed)
Mount (must be 1 size larger)

Attack Actions
Escape (vs grappled, immobilized,restrained)
Strike (single attack)

Misc Actions
Delay (bleed, poison, etc trigger immediately)
Ready (prepared single pulse action according to trigger of your specifics)
Take Cover (take benefit from near cover)
Raise a Shield (to use it in defense)

Sensory Actions/concentration
Seek (look around for something. 30' cone 15' burst)
Sense Motive (Secret perception)
Avert a gaze
Point out (reduces undetected to hidden)

Spell Actions
Cast a Spell (spell description details number of pulses)
Dismiss (end a spell effect)
Sustain a Spell (concentrate to maintain)
Sustain an Activation (concentrate to maintain an item activation)

During downtime you may specify what you wish to be focused on doing...

Downtime Actions

Bribe Contact
Craft (Alchemical/Magical/Mundane/Snare minimum of 4 days)
Craft Disharmonic instrument
Create Forgery
Earn Income
Forge Documents
Gain Contact
Gossip
Long Term Rest
Retraining
Scout Location
Secure Disguises
Subsist (live off the land)
Treat Disease



There are a number others designed for Kingmaker and running a kingdom and a few of you're a student in a school of some sort. I did not include them.