* Jambo: This is the most common and versatile greeting, meaning "hello" or "how are you?"
* Habari: This is another common greeting, meaning "news" or "how are you?" You can reply to this with "Habari za asubuhi" (good morning), "Habari za mchana" (good afternoon), or "Habari za jioni" (good evening).
* Sasa: This is a more informal way to say "hey," often used between friends.
* Ewe: This is a more formal way to get someone's attention, similar to "Hey you!"
You can also use "Hey" itself, as it's been adopted into Swahili.
The best choice depends on the situation and your relationship with the person you're addressing.