So... In their daily life they may have some hobbys or talents which Uncle Rick didn't confirmed but it still might become canon.
Annabeth can be superior in chess, maybe (with proper training) she can even reach the GM level.
Piper might be good at discussion/disputation mostly because of her charmspeak.
Leo might be good with building legos.
Percy might be a good gamer but idk. Also he might be good at fencing.
Hazel was good at drawings so she might like art. She might also be good at photography.
Frank might be good at cooking or idk but maybe he can play paintball very well?
Jason... Umm, I feel like he would be one of those '' example '' students. Being good at school subject, sports and other stuff. But I don't really know.
Will might be good at chemistry (because of his healing ablities, making medicines maybe?)
Nico... I have no idea but he used to collect those cards when he was a kid so I think that he might collect other stuff like stamp and etc.
Reyna might be good at strategy games also in martial arts and fencing.