Mind you, they might run away if you get too close.
He went away.
I scared him away.
But if you sneak up carefully, they'll be easier to catch, and give you bonus experience points too.
For best results, make sure to move when they're calm.
Throwing a Nanab berry could help.
When you see those words, expert handler, you're close enough to throw the Pok�� Ball.
But sadly there's no word on an android equivalent.
Stay tuned for that one.