I don't mind at all! I usually make them on video star and export them and then post them on TikTok but I feel like that's not what you meant haha
I usually post videos that can get people to interact with my writing, like for example asking for title ideas, which was my first video. I did make one video asking for character submissions, so people could be in my book. For example, they would write their name, pronouns, personality traits and appearance in the comments, and I would choose some I liked. Hope this helps!