How Do I Know If My Dead Friend Is Trying To Talk To Me?

It depends on what you  believe. Do you believe it to be your best friend? Are there signs that would only be from this person? Others may think you are nuts. But if you feel this person's presence, especially if you were very close, than why couldn't it be? Is this person there or around you, when you are going through a difficult period? Much like they would have been while they were still here? If it brings you comfort than why can't it be so? I know my parent's and others are still here when we need them. It's how you take it.