My personal experience of people who are fasting and those who act like fasting.
How to recognize non-religious in the group?
Before Iftar:
The people who are in deep interest, waiting for iftar.
Look at the clock with repeated annoyance.
It will seem a few days of fasting.
Iftar:
From the first to the end, the relentless interrupted Iftar.
At the time of eating, he said little talk.
After Iftar:
The sounds of the fiery words boil.
And the Rojadarer just look at the opposite characteristics. not so interested attitude to iftar, talk before the iftar, make a double talk, take a little tired to eat, and reduce the conversation, etc.
In both cases, these features are very natural. I myself have its proven evidence.
If fasting is hunger during iftar, who knows. And if you do not do it, I do not understand Kootakkudha Quetheika during Iftar.
For this, I do not go to the Iftar party when fasting.