13 Dos and Don'ts Of Performing At Open Mics
DON’T play and leave.
DO talk to EVERYONE and remember their names. You can even write their name and description and review it at the end of the night. They will be so impressed the next week.
DON'T just say "Good job". Be specific and sincere like "I really liked your hook" or "Your low range sounds great!" so they know you were paying attention.
DO introduce others. Even if you aren't interested in collaborating with someone, maybe you can give someone a good lead.
DON’T heckle. No one wants you to request Free Bird.
DO be gracious. If only one person is listening, play just for that person, and yourself.