The line: Kuch Kuch Hota Hai Anjali Tum Nahi Samjhogi. Kuch Kuch Hota Hai Rahul tum nahi samjhoge.

The mood:You know you're in love when Kuch Kuch Hota Hai, says the tag line. Only Rahul (SRK) and Anjali (Kajol) take their own sweet time to digest this.