Two scouts is good. Then how about five scouts? That happened to me in a game last week. I found lots of huts and most of them popped scouts. I prefer techs, but scouts are second best, except maybe when you already have four of them!
I love the movement of scouts and try my best to land on a forest/jungle hill. This often strong influences my direction (as do huts), which otherwise would be an outward spiral. Also, I avoid bears if I see them.
With Scouts I go for the Woodsman II promo as others have mentioned. Usually I can get this promo fighting animals. After that, I'm likely to get to 10 XP, as the Scout will be able to handle Warriors when fortified on a suitable tile. I run away from Archers.
If my explorer is a Warrior, I go for Combat I and then Cover, running away from Axemen.
I've tried giving my Scouts Combat then Medic, but they rarely make it back home to be used as war medics.