How to kiss my crush in a cute playfull way?

i like this guy liam we see each other about once a week and every time we see each other i am with my parents and he is with his parents so i ask how do i get alone with liam with out any parents + how do i kiss him in a playfull cute flirty way so he will like me any more i know he likes me its just a matter of getting alone also we have camp commming up this summer i think i can wait till then its 5 days mon. - fri. but it has a no kissing no hugging basicly no touching to other gender stupid i know but if you could come up with a way for me to get alone with im i would be so gratful thanks :)