There will be plenty of places in the game where you can get this achievement. Just be sure to examine chests and crates, especially when you see the yellow sparkles drawing your attention.
To unlock this as early as possible, during the battle in Town of Tolby, where one of the civilians being attacked by Kelbrun's men, you'll notice some crates with yellow sparkles next to one of the houses. If you don't see it right away from the start, use the to move around the map and use the to change the camera angle. Have a character go next to the crates (to a non-diagonal space) and examine it by choosing Action, then Examine.