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