Possibly my most awkward stuttering moment ever

Possibly my most awkward stuttering moment ever So me and my 2 friends, (who i am very comfortable speaking with) were eating lunch at Subway. And then my friend sees his other friend walk by so he waves him over to talk. They chat some and then the guy goes in for a handshake and asked for my name, i shake his hand but i just couldn't get out my name. I blocked for like 5 seconds and they all looked at me like some kind of freak. I just couldn't get out anything, its like some social block my brain does. Im so fucking tired of this...