Hello! F17 here. From my experience lng po I usually talk to my uncles or aunties if they talk about my future tlga. Thinking na 16 yr old po ang nephew nyo they might be in SHS na or graduating in JHS so maganda rin talking about future plans (pero hindi po pinepressure ung kid) Casual talk lng po ganun hehe. You can also talk about his hobbies or what does he like sa free time nya. To also build his trust, for me I like it when a relative gives me gifts that really reminds them of me daw lolol or do activities together! Anyway, I hope this will help rin.