Sif's Purely Accurate Accounts Proving Loki is an Incorrigible Prick

In which Sif doesn't know what kind of game Loki is playing, but everything about it manages to grate on her nerves; the attention it gets from other people, the indiscernible gleam in his eyes when he catches her eye, and the burning in her chest when he always, always smirks. :: Or, in which Loki effortlessly trolls Sif without saying a word. :: Pre-Movies!