Definitions by Tongan
samoan
People of Polynesian descent, from the Islands of Samoa. To distinguish a Samoan from any other Polynesian, just say "Talofa". If they smile and say "Talofa" back, then there you have it. That person is Samoan.
Tongan
People of Polynesian descent, from the Kingdom of Tonga. To distinguish a Tongan from any other polynesian group, just say "malo e lelei", if they answer back with "malo", or "malo e lelei", then they are Tongan.