It's not a game designed purely for expert bluffers. Everyone I've played The Mind with has their own tells and quirks - even when they know the rules forbid it - they'll cringe at their hand, tentatively hold a card forward, or lower it to the table. It's just fun to pick up on these and have a laugh about them.
I'm sure there are people that will rules-lawyer the fun out of it, but with the right crowd this is one of the games I've been pulling out most frequently recently, and haven't heard a bad thing.