One thing i want to point out is that when meeting the parents more often such as picking her up and having short interactions. Playfully compliment her mother, "I actually came to see you Miss, ???" insert cheeky smile. Anything like that is quite flattering, quite flirty and shows a sense of humor, with the father try to always have something to ask him or talk to him about, maybe something to continue upon from last time. if you share any common athletic activities invite him out sometimes, forge a friendship outside the fact that you are dating his daughter.

Something i learned from being european