It can be the most controversial TikTok technique. When you are telling an interesting story but then running out of time… and finishing it with “Like for part 2”. Most likely people who got hooked by your video are going to go to your profile to find the Part 2 (and then Part 3, Part 4, etc.). So it can create more engagement. But be careful, because sometimes people are just getting annoyed that you could not post it in one video. Especially now that you can upload a video up to 3 minutes.