Loki:
When it comes to getting information from an enemy you are the best at it. Being the head of intelligence in his army you can fly under the radar and come back with everything he needs to know. This is because you are introverted. In all situations big or small you are always observing things that are going on. When people think you are just a socially awkward person they don't know that you are actually listening and paying attention to everything.
One day you came back to Loki with all the intelligence needed.
Loki: how on earth did you manage all of that? I don't mean to impose but you are a very quiet person.
Y/N: that may be true, but know this Loki... I may be quiet and introverted but that does not mean I am not listening. Introverted people are just as dangerous.
Loki: (chuckles) Good girl, you have done well.