Talk:N Terraria 6/@comment-32778169-20170805125039/@comment-3509554-20170807050321

Grab a Active skill icon from your class skill list, then move to one of the four slots, which I believe Is on the lower right of the screen, or above the interface where the skills are shown, from up to down/left to right, the keys are F1~F4, press the skill corresponding button to use the skill.

If the skill is a Passive, just by the fact It is unlocked, It will be under effect all the time.

I don't remember If there is switch skills in that version, but If there is, leaving it turned on will make the skill be under effect.