Yup, agree with the others on this one. Let them know you've been practicing, but let them think they completed this "milestone" on their own. Especially the first steps when you have an infant.

Parents feel immense guilt leaving their kids (I did when I worked outside the home when my son was little) and will be over the moon thinking they have experienced all the "firsts". It's a daycare providers secret that these first steps and milestones were done days or weeks whilst in our care