[SubBabyDoll]

While outfits definitely help encourage the role, individual play activities are also beneficial for the feeling.

For some examples using children's coloring books, watching little kid tv shows for periods of time, using a sippy cup, certain foods/meals (you can get creative with this). Additionally, seasonal outdoor activities such as blowing bubbles outside, sidewalk chalk are food for thought. It helps not to mix these activities in between adulting so as the little mindset doesn't get lost with such distractions