He probably means your playing style, like do you leave no stone left unturned or do you rush through the routes not catching any Pokemon unless you like that particular one and want to use it on your team.
I'm going to play this game (X & Y) like the previous installments, catch all Pokemon available on the route and clear all trainers and items. That means I'll probably be playing with a guide!
I'd probably look at an online guide (notably Marriland's videos) but I'd play the game the same way as I did with my other Pokemon games. And I won't do Nuzlockes or anything because I'm not a challenge person.
If you're asking how to physically play the game, sadly it's not released to the public in any form, so you'll have to wait until release. If you're asking how you actually play a Pokémon game, that's not such an easy question as there are various ways of skinning a cat, per se. However, there isn't really much to discuss on this topic pertaining to X/Y, so I'm gonna go ahead a close this.