Raising a bilingual child involves several strategies that can effectively help children become proficient in two languages. Here are some of the most popular methods:

1. One Parent, One Language (OPOL): Each parent consistently speaks a different language to the child. This method helps the child associate each language with a specific parent, providing clear language boundaries.
   
2. Minority Language at Home (ML@H): The family uses the minority language at home, while the child learns the community or majority language outside, such as at school or in social settings.
   
3. Time and Place Approach: Different languages are used at specific times or in specific places. For example, one language could be spoken on weekdays and another on weekends, or one language is used at home and the other outside.
   
4. Language Immersion Programs: Enroll the child in an immersion school or program where they are taught core subjects in a second language. This provides extensive exposure to the target language in an educational setting.
   
5. Bilingual Education: Involves formal instruction in two languages, often starting from an early age, allowing the child to develop literacy and academic skills in both languages simultaneously.
   
6. Playgroups and Community Resources: Engage children in playgroups, classes, or activities conducted in the target language. This also includes making use of community resources like libraries or cultural centers that offer activities in the second language.
   
7. Books, Music, and Media: Regularly expose the child to books, music, movies, and television programs in both languages to enhance listening and comprehension skills.
   
8. Travel and Cultural Exposure: If feasible, visiting countries where the second language is spoken can provide immersive experiences that reinforce language skills and cultural understanding.
   
9. Consistent Practice: Encourage regular practice by engaging the child in conversations, storytelling, and other interactive activities in both languages.

Success in raising a bilingual child often requires consistency and commitment from parents and caregivers. Tailoring these methods to fit your family's lifestyle and the child's needs can create a supportive environment for bilingual development.