Flirted with one of your party members and began a romance.

Found and killed a varterral.

Mastered a weapon style.

Find Nathan Gould

Single Player: Kill 4 enemies in a row with headshots

Defeated the rock wraith on your expedition into the Deep Roads.

Became a partner in a Deep Roads expedition.

Used teamwork to perform a cross-class combo.

Dealt with the mercenaries that killed the Vael family. ("The Exiled Prince" downloadable content)

Gave a gift to one of your party members.

Kicked the slavers out of your ancestral mansion.

Opened 50 chests.

Left Kirkwall to explore the outlying regions.