This is usually marked by a symbol with three ellipses (symbolizing a chain stitch) arranged in a inverted three-sided shape with a dot at the bottom (symbolizing a slip stitch), or an inverted three-sided shape within a circle.
The picot is a decorative element of the edge of a crochet piece – it’s often used to finish napkins, blankets or table mats. This small raised loop is exactly what it’s symbol depicts – three chain stitches joined by a slip stitch. We may use it between any types of stitches we like.
We make three chain stitches, push the hook through the third chain stitch counting from the hook and close with a slip stitch. We now have a picot.
We may now continue on with whatever stitch we like.