Boyfriend

So im a bit of a tomboy I go to fire and rescue cadets ( my dad runs it) I'm 16 turning 17 next week and I'm the only girl and I hang out with a few close friends there (guys) but this new guy just moved to Australia (where we live) from London and he is smoking hot and extremely nice, and last week when I met him he kinda seemed to be a bit interested in me but the only problem is that this would be my first bf and my dad is there and how do I handle it and also what can I do to let home no that I like him and that I wanna be with him?