Here is the full list of all 24 Smile For Me achievements. It takes around 5-6 hours to unlock all of the achievements on Windows.
Find an alternative route
Leave unfinished business at the Habitat
Some crimes can’t be forgiven.
Find the Duck’s true owner
No thank you ma’am
Escape the Habitat
Forgive and forget.
Satisfy every habitician
You really went and did it, huh?
Grip a Y’owl for Borbra
Clean Kamal's teeth
Find every diary page
Satisfy 15 habiticians
Accept a smooch
Dispose of the Duck
Unlock the Terrace
Get a very high score at Whack-a-Molar
Discover a hidden sweetheart
The secret’s out...
Help a friend in need
Unlock the Lounge
Unlock the Carnival
Hit Ronbo with a golf ball
Satisfy a Habitician