ćaskati

1. (casual conversation) to chat; to make small talk
   Sedeli smo u kafiću i ćaskali satima. — We sat in the café and chatted for hours.
   Volim da ćaskam s komšinicom ujutru. — I like to chat with my neighbour in the morning.
2. (online) to chat online
   Ćaskala je s drugaricom preko Vajbera celo veče. — She was chatting with her friend on Viber all evening.

With a partner: ćaskati s kim; about a topic: ćaskati o čemu.