Try Golbat. They're everywhere.
look in the grass
barboach? http://pokemon.marriland.com/platinum/pokedex/barboach/ look at the bottom
You have to have a Pokemon that knows mean look or block. Then use the move and they wont be able to flee.
There is no "HM" mean look.
You get to level 77 and look in bushes.
don't know look at the pokedex and find it
you have to look in the book at mr backlots place
Mean Look is not a TM in any of the Pokemon games. It is a move that can be learned by Pokemon such as Golbat, and Crobat.
look around twinleaf, and by that i mean look in the patches of grass
In Pokemon Platinum Paras (#046) can only be found in the Great Marsh. You have to look through the binoculars and see it in order to find one.
Go to most caves and you can find a Zubat or Golbat which usually have that ability.
Got the website in related links. It will tell you where to find the legendary pokemon, what levels they are and what they look like.