Use your cursor or finger to draw by pressing and dragging around the canvas area. The marks you leave will act as pheromones, attracting ants that will form a path by traveling from mark to mark. Some ants may not pursue the trail. This is normal, and most ants will eventually become disinterested and wander away. If so, you can make more marks to attract them. Some ants may not leave the trail and will become stuck at a certain spot. This is also normal. However, if the simulation only loads a single ant within a few seconds of loading, the composition may have become stuck. To fix this issue, refresh the page from your browser.