See the Official POTA (Parks On the Air) website for additional details - https://parksontheair.com .

For each exchange, try to head-copy it. First, it is sent in Morse code. Then it is spoken. And finally, it is sent again in Morse code. If you missed something the first time when it was sent, the second time allows you an opportunity to learn it.

I wish you all the best on your Morse code journey! 73 de AD0WE