I let out involuntary yells when great things happen. Never "Boom!" but more like "YEAH!", and "That's what I'm talking about!", or maybe the occasional "DARIO!" and I pump my fists in the air. My neighbors are probably wondering what's going on. Been a lot of good lately!
I'm pretty sure my neighbors think I'm a referee. I carry on heated conversations with my fellow stripers, the darned fools seem to miss more of the calls than they catch. So far I've yet to talk them into correcting one of their decisions but that doesn't stop me from giving it full (and loud) effort.