our daughter did the same thing for about 6months. We just ignored and continued our conversation or left the room. No reaction is they key i think. Unfortunatley if we had relatives present they would often react and encourage the behaviour. Our daughter then stoppped doing this and all is well.

Thanks for the help. I am trying to ignore it the best I can,it's hard though especially when she does things like hit her face on her stroller so hard her mouth starts to bleed. It's nice to know I'm not alone.