nasmejati

1. (nasmejati se) to laugh; to smile
   Kad je čula vic, glasno se nasmejala. — When she heard the joke, she laughed out loud.
   Pogledao me je i nasmejao se. — He looked at me and smiled.
2. (+ acc.) to make laugh
   Njegova priča nas je sve nasmejala. — His story made us all laugh.
   Uvek uspe da me nasmeje kad sam tužna. — He always manages to make me laugh when I'm sad.
3. (nasmejati se + dat.) to laugh at
   Nasmejali su mu se kad je pao. — They laughed at him when he fell.

Imperfective: smejati se for nasmejati se; zasmejavati (less often nasmejavati) for the transitive sense. The person laughed at is in the dative: nasmejati se nekome.