You asked me how...
This is how I know... The way you look at me, when you look me right in the eye and you don't say a word, but I know what you are thinking. You look me in the eye and at that moment I feel like i should laugh, smile, cry, and scream out loud all at the same time. That look you give me tells me how you feel and the way I feel when you give me that look tells me how I feel. THAT is how i know. Answer your question?