As a person who regularly reviews students presentations, I tell you this: these "grabbing attention" gimmicks achieve nothing but irritate the audience. If you rely on it, you better think again, how to grab attention with your presentation contents.

Don't believe me? Ok. Check any of the presentations that had successfully pitched projects to VCs. None of them will contain any "attention grabbing" animations. Example: [1]

[1] https://medium.com/@gc/the-beginning-of-uber-7fb17e544851