Wish I knew, like most guys.
I comes and goes, like most guys.
Like most guys I agree that it's based on how you feel towards the individual you're playing. I have a hard time playing friends or people that I kind of like seriously for long. There's this one guy who I know and we're cool but I'm not fond of him (he doesn't know this) and he aggravates me to watch him play, he's weaker than me but I go into god mode when we play and crush him. There's a certain frame of mind that I get in when I play well, it's a balance of calm and seriousness, not really anger just deep focus and determination. My consistancy is all over the place because I don't know what turns me on, sometimes it depends on who's watching, where I'm playing, how the other person is playing but always when I play that one guy, it just turns on with him.