I make them say embarrassing things. Apollo's greeting is Hey :3 and his catchphrase is "fo shizzle." At one point, Anabelle's catchphrase was "live mas," but right now most people have normal greetings and catchphrases. When I had Zell I made his catchphrase "yes, yes" so that he sounded like Tom Nook.
I'm getting better at making them. My boyfriend gave Brofinna the best ever. She said "I declare!" as a greeting and "understand" was her catchphrase. It worked so well!
I made Graham say "shoom" because he already says it. I've also given Cyrano the greeting of "hello, old boy" because he seems like the sort of person who would say it. All the others have their original catchphrases apart from Cesar who adopted Chevre's "la baa".
Tempted to let someone say "good hunting" but I don't know if it'll fit (this is what happens when you watch a lot of Battlestar Galactica).
I made my Hamphrey's greeting "Ayy lmao". Its some joke that started on tumblr, but yea its so funny when he says it.
Hamphrey just has the best face I swear. Just looking at him makes me laugh(with him not at him)
A lot of my neighbors say "haha," "dude," "hun," "bud," or some close variation on those. Merry says "toats" and Frita says "pokemon" Most of my greetings are pretty generic like "Hey there" or "What's up?"
Most of my villagers have meaningless catchphrases. Lyman says "Kupo Koops", Kiki says "Meowz Mowz", Anchovy says "Poyo Kirby", Paula says "Poyolay", Gabi says "Keeby", Dora says "Floette" (With three musical notes after Floette), Cyrano says "Bleck", Skye says "Sky High", Velma says "Jinkies", and Cookie says "kiro kiro". I got Cookie from a friend and Cookie still has the catchphrase my friend gave her.
I suggested 'chuu~' to be Marshal's catchphrase. Then Pietro and Carmen started using it as well. It's not like I mind though, it actually sounds adorable when they pronounce it.
Whenever they ask, I just use a semi-flirtatious phrase. For example, "Angel Face" or "Cutie"
I think it's cute haha, plus it's fun coming up with the phrases for the animals personality
Because of my theme, I made Ruby's greeting "I'm late!" and her catchphrase "Tick-tock." The catchphrase has spread, and now everyone in my town sounds impatient and insane.
I usually have the cute ones say stuff like sweetie, sugar, darling.
I often use non-Eng greetings, and catch words. Ohaiyo, shalom, yaar
I like duuude for jocks
Elmer says glue, I need to change his greeting to Frau Blucher or blucher (Young Frankenstein).
Goose says Maverick. (Top Gun)