Simple instructions on how to draw a well proportioned heart for valentines.
Start with a square of paper, any size.
Fold in half one way and into thirds the other way. I've drawn the fold lines on to make it clear but there's no need to do this.
Mark the centre bottom, the sides of the top third fold, a point halfway between the top corner and the centre line and a point halfway between centre top and the top third line. See picture as this is confusing in words but simple when seen.
Join these points with a nice curve, go over this curve as many times as you need to until you are happy with it. Remember that curves are almost straight at the point where they touch the edges.
Fold in half and cut out.