New behavior I noticed this morning. Is this good?

[Guinea Pigzzzzz]

Well I went to go pick up Momo just this morning and when I picked him up I noticed Jojo standing right by the cage where I was standing.
He was just looking up at me holding Momo and all of a sudden he started popcorning, ran through a tunnel and came back watching me and popcorning again.
When I put Momo back in, Jojo ran up to him and started sniffing his bottom.
Is this a good sign?

 

[Toffeewoffee]

He is probably just wondering where he had been, he probably thought he was getting cuddles too, or floor time maybe.