https://www.backyardchickens.com/t/671202/expert-silkie-and-golden-campine-sexer-needed-also-there-are-many-photos
Here is a good thread to learn with.
This pic- that is a rooster stance and attitude. I agree with the streamer sighting as well. It looks to me that you have a pair. But silkies can really surprise you- I now am very humble when guessing silkies!