I have to agree with Carlos here. This pen will take a couple tries to get used to. First couple of times will make you wonder if it has ink in it or if it even works at all. But don't go scribbling like crazy on your nice paper ripping it to shreds with your pen because it does have a very delicate point to it. What you want to do after you follow the above directions of (snapping the ink cartridge into your pen until it makes a "click" sound or until it feels that you've pushed it in with all your Hulk powers), you want to tilt the pen at a diagonal direction to your paper. So the shiny metal part will be facing upwards and the black part of the pen will be facing down. As you place your pen at a diagonal making it so that your metal part of the pen is slightly bent at the tip of contact with your paper, you basically need to wait patiently until your ink gradually comes out. Then slowly move your pen around the paper to get the feel of the ink flowing out of your pen. Once you get the hang of it, you'll be on your way. Cheers. (^_^)

I have to say that this is a very easy to use pen. It is a little difficult at first but when you finally understand how to use it, it will be perhaps the only pen you will use for drawing