Margaret Pace Park volleyball players

Every time I rollerblade to south beach from home I have to pass by Margaret Pace Park. Usually make a couple rounds before I hit the Venetian. Everryyyy single time I see people playing volleyball, but I am way too shy to ask if I can play. I haven’t played in a ling time but I’ve always played sports so it’s just a matter of doing it and getting better each time. In less words, can someone please invite me to tag along? Thank youuuu