Open picot is a one of the basic crochet stitches.
At all crochet schemes open picot symbol would appear as:
At the scheme below you can see a stitches of open picot.
Open picot instructions
Create three chain stitches from the point in your row where you want to add the picot.
Insert your hook under the top two loops of the next chain of the previous row. Catch the yarn.
Work one single crochet.
Repeat the preceding steps.
Save this step by step tutorial as a reminder