stream to a friend over internet

Hi
So I’m not an IT guru obviously, but I’d like to give someone access to my stream over the internet. I can use the http streaming on my lan, but I can’t figure out how to port forward it or what not.
my router netgear has Upnp and I think this might be whats needed, but I can’t seem to find info on how to do this. I know its not without risk, but I trust the person.
Thanks

try use the No-ip https://www.noip.com
DDNS