There are three skills with corresponding Talents: Mining, Combat, and Archery. They are progressed through the following actions:
Mining: Mining ores.
Combat: Killing hostile mobs with melee attacks.
Archery: Killing hostile mobs with a bow or crossbow.
A Talent Point is earned when a new skill level is reached. Talent Points are tied to their relevant skill, so leveling up the Mining skill will unlock Talent Points that can be used to unlock Mining talents, and so on. Once you have earned your first Talent Point, you may begin unlocking perks on the talent tree via /sk talent.