I figure it's just because the entity is a fucking idiot and if it doesn't move, it goes into a stupidity coma.

Kind of like those people who always are singing to themselves - if they don't make noise, their limited brain locks up and they go comatose.

Also anxiety, the flapping you're talking about is literal hand-flapping they do for stimulation.

I think she is addicted to adderall

Tell your doctor right away if you have any serious side effects, including: signs of blood flow problems in the fingers or toes (such as coldness, numbness, pain, or skin color changes), unusual wounds on the fingers or toes, mental/mood/behavior changes (such as agitation, aggression, mood swings, depression, abnormal thoughts, thoughts of suicide), uncontrolled movements, continuous chewing movements/teeth grinding, outbursts of words/sounds, change in sexual ability/desire, frequent/prolonged erections (in males).

Niggers talk with their hands and she was told to keep them attached to the podium. This is the best that sheboon can do.

I love my work:)

Could be Kuru due to satanic cannibalism ceremonies

https://en.wikipedia.org/wiki/Kuru_(disease)#Signs_and_symptoms

Someone probably told it that it could actually fly if it flapped it's arms hard enough and really believed it to be possible!

Coke heads can't help but twitch.

She is actually a chicken.