Avoid Your Kid's Friends
Back when you had a toddler, it was perfectly okay to walk along talking to yourself, dressed in 10-year-old sweatpants while you burped at will. Those days are gone, at least when you're with a sensitive youngster.
Keep a healthy distance when you bump into any of your child's friends in a public place, like a mall or park. If it's unavoidable, say a quick hello but don't dawdle; your child will thank you later.