How to do a trick with a pen

Start off with a pen. Open it

These are the items should fall out

Use a paper clip to push out the spring

Now use back of the ink cartridge to push out the other pieces

Here are all the items

Put in the first item (the clicker)

Then add the spring

Now the last little piece

Use the ink cartridge to lock it all in

Ask your friend to right their name. When they click it nothing will happen. You can tell them that they broke your pen. It's super cool!