Am I hungry or not?

Do I want to eat because I am hungry or because I see the food? This is the question.
Talking about it probably doesn't help cause then I am still thinking about it.
Its healthy, low calories and good for me, but WHY do I want to eat it? I don't feel particularly hungry (maybe a little).
I am craving sugar, it is sweet. I need my Jell-O! Sugar free Jell-O only has 10 calories ya know. Okay, well I will get back to work and hope I forget about it.