To practice JavaScript effectively, consider the following steps: 1) Work on small projects that incorporate what you've learned, 2) Challenge yourself with coding exercises from online platforms such as Codecademy, HackerRank, or LeetCode, 3) Read and analyze other people's code on GitHub, 4) Join a coding community and participate in discussions, 5) Set aside dedicated time each day for coding, and 6) Keep up with the latest JavaScript trends and updates.