How do you know when peas are ready to be harvested?

-This is my first time ever growing them and I have no idea how to tell when they are ready. I am not sure exactly what kind of peas they are. But, they are pretty much basic pea plants. Please help. Thank you.It is mostly by trial and error. The pods have to fill out. As the pods form they are very flat and you will notice little bumps where the peas are. Wait until the pod feels full. Break open and run your thumb down the row of peas to break they away from the pod. If you have picked them too soon, they will be harder to break away from the pod. If they easily slide into your hand, they are ready. If you leave them too long, the pods will start to dry up and lose their nice green color. The peas will taste bitter.

Good Luck!
With peas; it's best to err on the young side.