Togepi is a baby Pokémon that hatches from an egg. The Pokédex says that this Pokémon's "shell is filled with joy" and that it will bring happiness to its trainer as it travels along with him/her. Like all infant Pokémon, on the day a Togepi hatches, it develops a parental relationship with the first person it sees. (For example, the Togepi would think of the first female it sees as its mother)

Togepiiiiii! Toge toge! Piiiii!