For the first half of the movie, it seems that she is trying to provoke a reaction from her surrounding acquaintances, rather than kicking off any master plan. (oracleoffilm.com)
It's easy to provoke a reaction by giving harmless - looking individuals (see also: small children) something shocking to do. (thedissolve.com)
Doctors know the proper amount of peanut that will challenge the immune system without provoking a reaction, and can step in to protect the child if a reaction does occur. (health.com)