I got 2 guinea pigs about 1 hour ago?

when i gave my guinea pig a ramp, they usually just jumped off it, but i made them get used to it, by [putting then in the hutch at night, and leaving them to do their own thing in the morning, and at night they have to find their own way to their sleeping area, so they go up the ramp, and they know this because they have been down the ramp:)