If it's like any other MMO, the amount of times it makes contact with enemies. Some MMO use the amount of mobs you kill with it as the counter and some other use the time you spend engaged in combat. It could be one or some of the above. If someone has a more accurate factor, I am sure they'll post it.
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@Tashigi I did that play time to time thingy, but I don't know if it's worth it. Atm I run a 2 small businesses. 1 alone other with a friend. I kinda wanna add 2 new studies for future plans. not 2 at once but kinda rush through the study/pass it and follow up on the next study, but after that i will have to do a full commitment to get the whole project started. Might need to travel etc. Chance I even end up in a country that doesn't have BnS Eng BnS x)
Yeah, that sounds like it'll be more than just full time work, then. I went through something similar several years ago, having to move, relocate, find new work/place to live, etc. It's not exactly easy. Best of luck to you, though.