Create 10 practical ways in which companies and brands can build an authentic and impactful brand identity on TikTok to sustainably inspire their target audience and increase brand awareness.

Context: [TikTok, Brand Building, Brand Identity, Content Marketing, Target Audience Addressing, Influencer Collaboration, Viral Formats, Community Building, Storytelling, Social Media Marketing]

Goal: [Increase brand awareness, create emotional customer loyalty, develop authentic content, utilize viral potential, establish sustainable brand presence on TikTok]

For each way, explain:
1) a concrete measure or strategy for brand building on TikTok including possible content formats
2) tips for practical implementation and adaptation to different industries
3) opportunities and challenges as well as notes on dealing with TikTok-specific trends and algorithms

The ways should:
- be practical and directly implementable
- be suitable for small and medium-sized enterprises as well as start-ups
- consider creative and innovative approaches to brand communication
- include both organic and paid strategies
- take into account the specifics of the TikTok community and platform mechanics