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"Giggles are signs that the baby is feeling good, comfortable, loved, and connected," says Philip Mamalakis, PhD, a marriage and family therapist specializing in child development in Boston.
Babies develop a sense of humor pretty early, but laughing isn't just a response to stimulation. Connecting with your child -- blowing some "raspberries" on her belly, tickling her feet, making a funny face or getting silly during bath time -- deepens your bond of love.
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