Kunal was smiling in the entire episode.
Naughty smile when his hand to he'd siddhi's second time while taking the aarti, happy smile when siddhi gets scared and holds on to his arm, contented smile when he sees siddhi laughing and he laughs too. Next morning when siddhi is narrating the incident to family he is constantly smiling and is happy about seema's teasing. Then he has a teasing smile when he pretends to be angry with siddhi. And ultimately the hay scene his blushing smile left us wanting and waiting for today's episode