You could use LogMeIn Hamachi. It's great and you don't have to port forward or anything. You just have to share the password in order for your friends to join. You can find a great tutorial on how to set a Hamachi server up . Also, here's the download link for Hamachi. I don't know if you could get it working for a PE server, but it's worth a try.
However i do not want to open ports or portforward or mess up my router or anything like that
I know that if i dont open ports only people on my wifi can join but thats what i want
I would like to use my PC but i do have a mac
Long story short
I want to make a server without doing anything to my wifi and yes i only want people on my wifi to join
FIRST TO GIVE A COMPLETE ANSWER GETS A SPECIAL REWARD
Thanks