I made this guide to help you with achievements for Work Trip. It's not meant to be a walkthrough, though I don't think anyone'll need a walkthrough for this game anyway - it's pretty straight forward and quite short.

While four of the achievements are unmissable story achievements, the other three are missable. Two of those three are quite easy to find, but the third isn't immediately obvious.

I try not to spoil much else than what the achievements themselves do.

Unlocks once you've captured all five chickens for Tom.
Note: Unmissable story achievement.

After having found the lost boy and returned to Frida, you're able to enter through the "basement" door in the first village. The achievement unlocks once you do so.
Note: Unmissable story achievement.

Unlocks once you've captured all the sheep after going through the "basement" door.
Note: Unmissable story achievement.

Unlocks when completing the game.
Note: Unmissable story achievement.

After being told to look for the lost boy, enter the snowy woods area. Almost on the opposite side and a bit to the left is an area that might look a bit like a playground from afar. It's very easy to spot. You'll see the snowman looking thing standing in the middle of it. Just go up to it, and the achievement will unlock.
Note: This achievement is missable.

After going through the "basement" door and entered the area with trees in the sky, you'll soon come to a fork in the road. Taking the path to the right leads to a small village and Tim and Tom's father. But take the path to the left, and you'll find the wolf standing by the stem of a giant mushroom. Just go up to it, and the achievement will unlock.
Note: This achievement is missable.

Just beyond the first village, where you find Tom, lies a tree maze. One of the chickens you need to catch is inside if you follow the leftmost path, but take the middle path and you'll come to a tree stump covered in mushrooms. Make sure you touch it, then go to the second village, where Tim and Tom's sister lives. Between her house and another you can see lots of red mushrooms by a stone wall/cliff face. Having touched the mushroom covered stump, you should be able to walk straight through the wall. Inside you'll find the hidden mushroom, and the achievement will unlock.
Note: This achievement is missable.

This was a strange, little adventure. Perfect length for what it is, as well. The achievements were decent, and I especially liked the mushroom one.

I've written all of this based solely on my memory immediately after playing the game. In the case that I've made a mistake(like switching left and right in a description, for example - it happens), feel free to let me know in the comments.

And if you found this guide useful, please vote up!