Here is the full list of all 17 Margo achievements.
Always tell the truth
Find Dave
Spam the light
To Be Continued...
Lie lie lie
Give Gilles a lil boost
Kitty's secret is safe with me
The ghost can see through
Take the photo off the fridge
Make some noise in the kitchen
Put the orange doll on the skateboard
Interact with the vending machine
Give Mitch some garbage
Help the satalite
Look at the pitcure of Bean
Leave the tv and light on
Wakey wakey