When your heart is beating for someone special, and you can't stop thinking about that feeling... why not illustrate it on your nails?
Taking the electrocardiogram as a pattern, apply a layer of transparent and shiny nail-polish - like the one you would use to do a french manicure - and trace a line going up and down, keeping in mind that the beginning and the end of your line should be on the same horizontal point.
Simple looking, it takes some practice, especially on your second hair. But people will most definitely be impressed by your skills if you pull it off! Clean, graphic, it's one of my "go to" styles.
Products used on this post
* Bourjois So Laque Ultra Shine nail polish n°28 "Rose lounge"
* Topshop nail art pen in "black"