I was 2" low of being succesfull at it last year.
Find where they are roosting and where they are headed when they come down and setup some where along the way. Blind or not you will need some sort of cover to setup in or a Ghili suit.
Iwas just backedup against a 20' whitepine with limbs to the ground with a small bush in front of me wearing an Asbell wool pullover, no decoy.
Came by at 12yds....never knew I was there till the arrow skinned his chest.
Its a tough game to say the least, but a lot of fun.
Eric