We recently did a post about building phrases with “me” and “mine” such as “my shoes”. Your child is very observant and he or she is beginning to know what specific items belong to certain people. Often many of us are (unfortunately) attached to our phone these days so a common phrase you may hear is “Mommy phone”. The more they see us with an item the more they will associate it with us.
We like to start off with clothing since a jacket, for example, is something we wear every day in the fall/winter. They may be imitating or spontaneously saying “jacket” or “coat”, but you can now begin modeling possession such as “mommy coat”. Other things to target could be toys or other personal items. For instance, you could choose something that belongs to them such as “Roman’s dinosaur”. They may not say the ‘s part quite yet, but just to get them thinking about WHO it belongs to is a big step.
These techniques have also been helpful with behavior. Let’s say your child is trying to rip the papers of a magazine that you are reading. To put an end to this behavior, you can say “This is Mommy’s magazine and this is Roman’s book… we read magazines and books”. The more you use the same language, the more likely they will catch on, listen, and say it back!