How to have toddler stop hitting

Al

We have never spanked or hit our baby but she hits us every day. We don’t know where she learned it, but she’s our first so idk if this is normal toddler behavior. She is now 20mo old. She hits, scratches, bites and throws toys at us. She frequently hits us in the eyes or tries to poke our eyes. We tell her no and either act like we are really sad or cry so she understands she is hurting us. What else can we do? I’m beyond frustrated