I can describe the "big sis" really as halfway between peppy and snooty. They like fashion and things like that but are much more caring and will be the first to give you medicine for any bee stings. They also seem a bit more easy going as well so they get on well with the lazy types. They sometimes do a funky spin when talking about something they like.
The Smug character is awesome! He is so full of himself. The Unicorn Juri, or Julian if you want, will say how awesome he is on many occasions. They get on well with the snooty type and I think they're just as mean sometimes. He has a cool sparkle animation when he's going "Damn Straight" or darn tooting if you're my Mum.