How do i hint to my boyfriend i want him to finger me?

i want my boyfriend to finger me but idk if he knows that i want him to so hes scared to make a move. so how can i hint to him that i waanna get fingered by him without cooming right out and saying it? also whats the best way to do it? like while im laying down standing up or sitting? pleasse helpp thankss and will it hurtt?