Part of being a parent means being there for your child when it’s time to have the big conversations, from ‘what is death?’ to ‘why does Santa look so much like Grandpa?’ There’s a good chance that most of these conversations are at least a little ways away – most babies don’t start to play detective over Santa’s shoe size until they’ve started speaking in complete sentences. Other conversations may need to come a little sooner, though, even if Baby might not be ready to hold up their end of the dialogue very well yet.
Public vs. private
Babies are blank canvases, both in that they’re full of innocent wonder as they explore the world around them, and in that they really have no idea what’s expected of them in polite company. This means both that Baby doesn’t mean to embarrass you or make anyone angry when they start climbing all over the fabric of your college roommate’s nice new couch the same way they might in the living room at home, or start wailing when they lose their temper at the library. They are just curious, or restless, or overwhelmed, and is responding the same way they usually do, regardless of the venue.
Some parents find it’s easier to just make a rule against certain behaviors all of the time, instead of trying to explain to Baby that they can act one way at home, and another way in public. In the end, it’s a question of whether you feel it’s better to start talking about the differences between the way people act at home and in public early, so Baby grows up with the idea and grows into understanding it, or whether you feel it’s better to wait to talk about it until Baby can understand and respond in a meaningful way.
One of the biggest keys to conversations with Baby at this age is consistency – they're not going to get it right away, but if you’ve patiently talked through the importance of using an indoor voice at the grocery store three, or four, or fifteen times, you may notice it start to make a difference. An important part of toddler-proofing is talking to your child about household dangers and how to avoid them, and dealing with public vs. private behavior falls under a similar category.