Create 10 practical techniques and suggestions that authors can use to craft lively, authentic, and tension-filled dialogues in novels, in order to promote character development and emotionally engage readers.

Context: [creative writing, novel, dialogue design, character development, tension, authenticity, narrative technique, character voice, emotions, reader engagement]

Goal: [improving dialogue quality in fictional texts, promoting character depth through dialogues, increasing reading motivation through varied conversational situations]

For each technique explain:
1) a concrete method or approach (e.g., using subtext, different speech patterns, conflicts in dialogue)
2) the benefit for the effect of the dialogue and character portrayal
3) tips for practical implementation and avoiding common mistakes

The techniques should:
- be easy to understand and immediately applicable
- provide creative impulses for different text genres
- contribute to deepening the narrative style
- help authors make their dialogues lively and believable