Four-month-old Baby Timo is playing and smiling at his Dad.Baby Timo is demonstrating a

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Baby Timo's smile is a social smile, which is a deliberate expression of happiness or pleasure that is used to communicate with others and to establish social bonds. This is an important developmental milestone that typically occurs at around two to three months of age. Nonverbal encoding and decoding refer to the ability to create and interpret nonverbal signals, respectively, and communication refers to the exchange of information between individuals. While these are all important aspects of social interaction, none of them fully capture the specific behavior that Baby Timo is exhibiting.

Four-Month-Old Baby Timo Is Playing and Smiling at His Dad