Ways to greet a third person in a conversation? [closed]
The most common expression to convey one's good wishes to someone through another is say hello to someone (from me).
Other options (from the least to the most formal one) are:
Say hey to someone (US Regional)
Say howdy to someone (US Regional)
Say hi to someone
Give my best to someone
Give my love to someone
Send/give my greetings to someone
Give my regards to someone (British English)
Remember me to someone
Passer le bonjour a quelqu'un