advice introducing milk?

our LO had her 9 month check up today. all is well. we feed her formula (weened off breast at 6months and loves her formula) and she gets three meals a day of “people food”. she gets lots of vegetable and proteins of different types - she hasn’t met a food yet that she dislikes!

pediatrician told us to start adding whole milk now, and eventually by her 12 month she can be completely done w formula

any advice on implementing the milk? i’m thinking of starting it in a straw trainer cup like maybe 2 oz w her meals? i’m so excited!!!