For me, love is when Rahul (SRK) meets Anjali (Kajol) after 8 years in a summer camp in Kuch Kuch Hota Hai. They are so much in love, excited, happy, at a loss of words - they dont know what to do. They cannot even greet each other.. And to see his tomboy best friend in a saree.. Rahul does not know how to react. The only words he can mutter are "Saree"?! Wow! Thats romance for me..
And that scene was shot in just one take! Excellent!!