MIND YOUR MANNERS
Again, treat it like a job interview. This should go without saying, but it’s important to remember “the three Ds” when meeting the parents for the first time: Dress appropriately, don’t bring up potentially dicey topics (religion, family issues, politics) unless prompted, and, for Pete’s sake, don’t be late.
My sister’s ex-boyfriend was habitually late to every dinner reservation, movie outing, and birthday party where members of our family were in attendance. Needless to say, he’s no longer in the picture. Nobody’s perfect, and your future in-laws will learn to love you despite your mistakes. But it can’t hurt to start at 10 instead of 0 so you have some room to slip up.