Some stories about "Cap Tangan":
"Mr Ngan Yin developed his own secret recipe "Kacang Cap Tangan" that uses the image of thumb up to indicate Excellent".
My opinion about the LIKE button:
1. Try to tell other that you saw the sharing and agree/concern/support the sharing.
2. To get free stuff. Most of the time, it is compulsory to LIKE the page in order to be eligible for the free stuff.
3. To practise "You LIKE me, I LIKE you" activity.
(P/S: The above sharing is solely based on personal insight. Please do not take it seriously. However, your valuable feedback are very welcome.)