Outside of mating season and when not appearing threatening typically 'just fine'. With young and whilst in mating season: avoid if you can. Seeing two bull moose crash into each other will give you all kinds of things to think about, such as what would happen to your car if one decided to plow into it. And they don't move slow either, they are very agile, probably much more so than you'd give them credit for if you haven't seen them in action. It's more like swordfighters than sumo wrestlers.
Most moose encounters are entirely uneventful. Moose normally avoid / don't care about humans. That's why they are actually most dangerous to drivers - a high velocity moose crash is very dangerous for any vehicle smaller than a semi or van due to the anatomical mechanics of the moose body.
I.e. You will take out the moose's legs, but the rest of injured, still living, moose will come through the windshield to join you in the passenger compartment.
edit: this is a good sample:
https://www.youtube.com/watch?v=g-7imHBlguk