Tick anything you already have, in any order. Quests unlock once this is done.
Most clubs run open play where you are put into games with strangers, which is the entire point. Turning up alone is normal here in a way it is not in tennis.
Find a pickleball court2 things left above. Quests are real things you go and do, so they only make sense once you have what you need.
First one waiting: Call the score correctly all the way through a game