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How to deal with your crush when he knows you like him
Don't stop talking to him about " everyday " things.
When you find out that your crush knows you like him, don't let this turn your relationship into something awkward and unpleasant. Try to continue talking about the things you normally would.
For example, if you have classes together at school, don't hesitate to talk to him about your assignments. Keeping a casual attitude will make your interactions much easier.