Background
I'm a novice Fate GM, with 4 more novice Fate players. We all have experience with RPGs, both pen and paper, electronic, and LARP. We all wanted to try Fate Core because it's much less mechanical and crunch-heavy than other systems (like D&D) and so far we really like it.
The problem
There are really few exchanges of fate points during the game. My players have their starting points, I give them a couple each during the session (not because I've decided that they have to receive just a couple, but because I don't really see many opportunities to award them), and they gleefully spend them (most of the time they end the session without points, and this is a good thing)
They usually spend them for +2 bonus or a reroll bonus, and they haven't yet spent them for declarations. I've read this question for suggestions, and I will try something this evening in our session, but the problem is more on my part rather than my players: I can't find good ways to compel them or any other way to award them MORE fate points.
The question
How can I award more fate points to my player, without relying too much on their aspects to compel them?
I've already asked for their help, but none of us is experienced enough to guide the rest of the party towards an healty, dynamic Fate points economy.
Campaign Specifics
I don't know if it's relevant, but we're playing a campaign loosely based on XCOM: Enemy Unknown. My players are a special team of soldiers against the enemy aliens, which have made planetfall and occupied a quarter of southeast Asia.