if there is ever a spot where your 'gut' is good for making decisions in poker this is perhaps sort of one of those spots. hard to comment much about whether to call or not really because while u are playing this hand ur mind is absorbing everything that is going on around u so u gotta just do ur best to put together all the reads: timing/avatar/location/hands played/time of day/your image/how long this dude has gone without winning a hand/his ego level-style/does he chat box? etc etc etc and from there the scale will tip u one way or the other.