Re: how not to fall for feints?
Learn to slip/parry/block punches at the very last instant, right before the punch is in your face. You will be able to time it better.
AND, you will have more time to find out if it's just a feint.
Another thing to do is to always practice slipping for more than just one shot. Always slip at least twice. That way, if its a feint, you are already starting to slip the second shot automatically.
And always remember to counter!!!