How do I activate o-power?

Question

i met mr o-power but I dont know how to turn them on.

Answer 1

You activate O-Powers through the PSS, the player search system, you can either send one to you friend or use one yourself.

Here are all Mr. Bonding's (Mr O-Power's) locations if you are interested-
http://pokemondb.net/pokebase/165152/where-are-all-of-mr-o-powers-locations