Any advice from you coo gurus for when i go look at them?
Not a guru, but I have a few tips.
Of course you want them healthy - they should be inquisitive, not breathing hard, not rasping when they breathe. Wet noses but not dripping phlegm. The usual stuff, lol.
Behaviour-wise, they should be inquisitive but respectful. They should move away from a direct approach, should not turn and drop their head towards you, much less shake their heads. They should not lift a back leg as if to kick. If you stand quietly in an unthreatening posture they should approach and try to sniff and maybe lick. They should not attempt to butt.
If you can touch them, don't touch their faces as this can be seen as an invitation to play head butting games

. Most cattle love to be scratched on the back, base of tail, behind shoulders. Maybe behind ears but not all of them like this.
I'd ask to see them fed some cake, or even to feed it to them myself - you'll soon see how respectful they are, some will be knocking you over as you dish it out

. If they can't settle to eat while you're there they maybe are a bit wild, so see if you can get them to settle.
Best of luck!