You definitely need to play well with others to have a successful guitar jam session*!
Here’s a few ideas and suggestions to help you get started:
~Choose a day, time & location
~Invite your guitar friends
~Set up, chairs, stands, etc.
~Sustenance is important! 
~’Jammers’ can bring copies of songs to share
~Most importantly, have fun! 
Play on…
Marlene

*To hear about jam sessions suggestions, including do’s and don’ts, listen to my newest podcast!