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You can tell if your argument is working  when the person you are persuading shows a gesture of agreement or downright tells you if they agree. If the opposite happens (they show a gesture or tells you they don't agree), then you know they

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You will know when your persuasive argument is working when people start to agree or even help you persuade another person but you will know when someone is not persuaded when  They just look at you and do nothing

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I will know when my argument is working because people start agreeing with me and say it's a good idea.

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You will know when the person you are persuading starts thinking you idea is good.

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You will know because when other kids and the teacher start to agree you will know it  is working. If it isn't working nobody will agree with you.

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You know when your argument is working when people start gradually agreeing with you. If it is not working, then the person will try to make you believe or do what they are doing and trying to persuade you to do.

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I know when my arguement is working when people are agreeing . I know if it's not working when they have better reasons than you and you start to agree with them.

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When they agree with you you will know it's working.

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You know if it is working if people start doing it and you know if it isn't if their not.

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You will know when your argument is working when people start to agree with you. You will know when your argument is not working because YOU will start to agree more with them then yourself.

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I have a feeling that my idea will not work because even though it's educational it may not work

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I will know that my persuasive argument is working because it would make them want to try it. If my argument is not working then the person won't try it.

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I know that my persuasive argument is working when the person against my opinion starts to agree with me. When it's not working, my opponent still uses information to make me change my mind.

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You know that your persuasive argument is working because the person you are begging to starts doing what you want.

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You know if it is working because people will start to agree with you.

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you would know if someone your persuading  is working by when they shake their head yes  and say"I totally agree" if not they will  continue to argue their opinion and maybe even shake their head no.

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You can tell that your argument is working if the person that you are persuading says,"I agree with that point." You can tell if it isn't working if the person gives counterarguments to your reasons.