For each step, open link in new tab, but do not close when done.
Close browser at the end of last step.

Step 1: Youtube video

https://www.youtube.com/watch?v=4KhESFkl_sE
Be sure to disable autoplay when the video ends (if enabled).

Step 2: Check out something on Amazon

https://www.amazon.co.uk/Sharp-end-cats-pencil-Sharpener/dp/B0016BMUIM
Scroll to the bottom, then back to the top.
Wait for the images to load as you scroll.
Resist the urge to buy and move on.

Step 3: Look at image on imgur

http://imgur.com/gallery/22T1GrT
Also hover mouse over any two of gif links in the comments, and expand any two of comments.

Step 4: Google search

https://www.google.co.uk/
Search for "cat blep", click on the images tab, scroll to the bottom (don't bother with "show more results").
Wait for the images to load as you scroll.