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