Darkvision
It gains darkvision.
Flier
It gains a fly Speed of 25 feet.
Independent
In an encounter, if you don't Command your familiar, it still gains 1 action each round. Typically, you still decide how it spends that action, but, the GM might determine that your familiar chooses its own tactics rather than performing your preferred action.
Manual Dexterity
It can use up to two of its limbs as if they were hands to use manipulate actions.
Speech (Draconic)
It understands and speaks a language you know.