What does fronting feel like to you?

I'm just so curious how others experience it. For me it's like co-consciousness essentially. Like, I'm there and so are they and we can talk really easily but they also have control of the body in some ways and can make the body do things without me being the one to do it n stuff like that. How do you experience it??

Also do you ever feel like your alters go away for weeks at a time then come back in full force out of nowhere?