@AkshayaAnnampedu "I'm hugging you" describes an action, not a belief. The main difference lies between an argument and an explanation. By saying "I'm hugging you because I miss you" the author is not trying to make you believe or convince you, rather they are explaining an action.

The way I thought about it was, "could someone argue that I am not hugging you?" No, because its an irrefutable action, and the fact that "I miss you" is just an explanation. If I had said "Everyone should hug someone they haven't seen in a while because they missed them," then I am trying to convince you of why an action should occur (argument), not explain why I am doing something (explanation).