Where should I ride my bicycle when riding with another cyclist?

Where should I ride my bicycle when riding with another cyclist?

Ericson Monsalud (Owner, Bike Attack) gives expert video advice on: Are bicycles dangerous?; How can I protect myself from bicycle injury?; Do I have to follow the same laws as cars when riding my bicycle? and more...

When riding with another cyclist, leave at least a good three to four bicycle lengths of distance, safely, so you guys can communicate and also watch out for cars opening their door, if you are riding on the road.