We have new staff this week and my supervisor is out so I'm the acting manager and the new staff keep sucking up to me and I don't know how to be like "you don't need to be nice to me I have literally no power over you"

Mutant, librarian, poet, union rabble rouser, dog, Ashkenazi Jewish. Neuroweird, bodyweird, mostly sleepy.
I write about transformative justice, community, love, Judaism, Neurodivergence, mental health, Disability, geography, rivers, labor, and libraries; through poetry, opinionated essays, and short fiction.
I review Schoolhouse Rock! songs at @PropagandaRock
We have new staff this week and my supervisor is out so I'm the acting manager and the new staff keep sucking up to me and I don't know how to be like "you don't need to be nice to me I have literally no power over you"
I can't speak for them, but if I was in a new job and someone was teaching me the rope, I would (and have) also be like that, and it's not because they have power. It's more like, "I am anxious, here is someone who know what they are doing, they can help me, I want them to like me." I think the internet would call this "senpai notice me" effect (and I have been like that toward teachers). So in truth, if that person were to told me that they have no power over me, it wouldn't matter.