Hi Floridagal....
I spent over an hour trying to get that bottle!
Step on the 1st drawer on the right...then the 2nd on the left and then the one right next to it. It's tricky, because you can easily slip down from them.

When you can clearly see the bottle--before you use the ruler on it...right click all around that bottle to find the "hotspot"....Nick will say something when you find it.
Only then get the ruler out of your inventory and left click it on that spot. I found this segment really frustrating too...like I said, it took me over an hour. Good luck.
Cynch