My wife has blown it with the neighbors' 4-year-old. The first time we met she said, "Hi little guy! I'm your neighbor!" He skulked behind his father's legs and said from the shadow in even tones, "I'm not a little guy." Then last week we opened the door at the same time as them and when he stepped out she yelled, "Do you want to see my puppy!?" Only the puppy wasn't anywhere near us so it came off more as a creepy hey-kid-you-want-some-candy kind of line. I keep telling her to play it cool. The other day I saw the kid and we had on the same jacket, so I said, "Cool jacket." Now we're bros for life.