Mom, on the first day of first grade, don't say, "I love you Sweetiepie - have a great first day - I'm so proud of you!" when I'm walking toward my school, OK? Just say, "I love you" in the car and I'll say it back. Or maybe you can say just, "I love you" when I'm walking away.
(gulp) OK. Wait - so I can say "I love you" when you're outside, just not the other stuff, right?
Got it. (sigh)