Loki throwing his glass on the floor and shouting "Another!" in the drinking scene is a callback to twhen Thor did the same thing after he finishes a drink he likes in the diner scene with Jane and Darcy.
Loki tells Sylvie that he got his tricks from his mother, and she's the one who taught him. This was previously by Thor, who claims Loki had Frigga's tricks, but Thor had her trust.