The line up is at the point where no wave breaks and is thus behind the refraction line.
To be able to surf green waves you have to be behind this line - in the line up. Sometimes it takes some effort to get there. On days with strong currents and lots of white water, the techniques already described on the way behind the break line will help you.
Before you paddle out to the line up, make sure that the day and the wave and winv conditions match your surf skills and that it is not too dangerous for you.
Each surf spot has "laws" and local surfer rules, as well as the right of way rules.
If you sit directly at the peak, it means: I am master of the situation and I am proficient in both the Take Off and my board. If you lose the take-off at this point, it may happen that other surfers will not let you take that best position in the water. Then it will be difficult to get back to the peak.
Also, it can happen to you that you take the right of way by the so-called drop-in, because other surfers think this wave is too good for a beginner.
If you realize yourself that the peak is too difficult for you, just take the wave from a slightly shallower point.
Here, however, if another surfer is already started from the peak, he is first in the wave and has right of way. You see, for beginners, the whole thing is not so easy.
If you are in the position that you have right of way and there is a wave, then definitely try to get the wave, because then has the next surfer in the line up the chance to paddle a wave.
Do not paddle every wave randomly. Note that there is an order.
Be respectful and friendly. Do not "attack" a spot with a loud roar that a handful of surfers have surfed peacefully before and keep your distance in the water. So treat other surfers the way you wish you to handle them, whether advanced or beginner, and remember: you once started in white water.