Fate Question: Pacing for Shorter Sessions

I'm currently running a Vampire the Masquerade game over Hangouts using Fate Core. It's off to a great start, but the sessions are only about 2 hours long, and Hangouts leads to a slightly slower pace compared to face-to-face, and I can see that it will be a challenge to push the players to spend their Fate points and accept compels. Previously I've run Fate sessions that were closer to 3 or 4 hours, and even then sometimes that Fate did not flow.

So how do you guys encourage fast and loose use of Fate points, and what adaptations do you make for shorter sessions? In particular, with people who are new to Fate, which all the players in this game are.