You can't. You have to get one from FireRed and trade it over.
Jynx cannot be found in Pokémon Emerald.
trade it
You can only get a Jynx by trading from Fire Red/Leaf Green.
You can't catch smoochum you need to breed a jynx with a ditto to get it.
Get a jynx from Pokemon firered or leafgreen then put it in the daycare with a ditto and wait when you come back you can get an egg and when it hatches its smoochum. You can't catch smoochum you need to breed a jynx with a ditto to get it. Breed two jinx (leave in daycare)
Catch a load of Jynx and hire them out while you're asleep, beware, you may get a lot of BAD EGGs and the POKERUS.
No jynx does not evolve
jynx doesn't have an evolution
Jynx was created in 1996.
To nothing - Jynx doesn't have an evolution. You may be thinking of Smoochum, which evolves into Jynx.
Utah Jynx was created in 2011.
No, Jynx does not evolve into Mr. Mime. Jynx is not capable of evolving further but it can evolve from Smoochum.