Assessing and identifying the talents of a three-year-old child involves observing their behavior, interests, and skills in various activities. Here are some steps you can take:

1. Observe their play: Children often express their talents and interests through play. Watch what they choose to play with and how they use their toys. For example, a child with a talent for music might spend a lot of time with musical toys, while a child with a talent for spatial reasoning might enjoy building blocks.

2. Provide a variety of experiences: Expose the child to a wide range of activities, such as music, art, sports, and nature. This will give them the opportunity to explore different areas and discover what they enjoy and excel at.

3. Listen to their language use: Pay attention to the words and phrases they use. A child with a talent for language might use a wider vocabulary or more complex sentences than their peers.

4. Watch for persistence: Talented children often show a high level of focus and persistence in activities they enjoy. If your child spends a lot of time on a particular activity and doesn't easily give up when it's challenging, this could be a sign of talent.

5. Note their learning speed: Children with talents often learn new skills or concepts more quickly than their peers. If your child picks up new ideas or skills quickly, this could be a sign of talent.

6. Seek professional assessment: If you suspect your child has a particular talent, consider seeking a professional assessment. Psychologists and educational specialists can conduct tests to identify a child's strengths and areas of talent.

Remember, every child is unique and develops at their own pace. It's important to support their interests and provide opportunities for them to explore and learn, rather than pushing them into activities they don't enjoy.