Pokémon Contests, a function people believed were replaced by the Battle Tents in Hoenn are very alive

However, there is only one place to do them, Lilycove City. This is where you'll get your Contest Pass & Your Pokéblock Case. You can also Blend Berries Here.

You can do all types of Contests here; Normal Rank, Super Rank, Hyper Rank & Master Rank for all of the types; Beauty, Tough, Smart, Cute & Cool

Contests are the same format as in Ruby & Sapphire so it should be second nature to you by now: