" Friendly chat" can be synonymously described as a "pleasant conversation" or a "casual discussion". Other synonyms could include a "cordial exchange" or a "heartwarming chat". If the conversation is more lighthearted, it could be referred to as a "chirpy discussion" or a "jovial banter". A "friendly catch-up" or a "warm exchange" could also be used to describe a conversation with a friend or acquaintance. Additionally, a "polite exchange" or a "kind intermission" may be used to describe a conversation where individuals are attempting to build rapport with each other. Overall, there are numerous synonyms for "friendly chat" that can describe a welcoming and enjoyable conversation.