Improving skills in subtitling can be achieved through a variety of approaches and procedures:

1. Practice: Constant practice is essential to enhancing subtitling skills. This can involve creating subtitles for short videos or movies, focusing on accuracy, timing, and formatting.

2. Study linguistic and cultural nuances: Understanding the intricacies of different languages and cultures is crucial for effective subtitling. Therefore, studying different languages, idiomatic expressions, and cultural references is important.

3. Utilize subtitling software: Familiarize yourself with subtitling software, which can help improve efficiency and accuracy in creating subtitles.

4. Seek feedback: It's essential to receive feedback on your work. You could join subtitling communities or seek guidance from experienced subtitlers to help identify areas for improvement.