this is just an opinion might be a ramble hope not lol. the key to bluffing i think is learn hand reading skills by that i mean, knowing raise first in ranges from every position the best you can then know what hands can play behind it from the positions afterwards, this gives you an idea of there holdings straight away. once you can put them on a range of hands it does not need to be a specific hand like AA KK more like 77+ and J9s+ anything really but you HAVE to put them on a range period....then when the flop comes if its more in favor of your position or his you need to have an idea of sorts, if your out of position its good to check so you can get more info and maybe narrow down the range but what you really want is a check because most people get excited when they hit a flop and bet regardless of position. checking opens the option up for a bluff not always of course. theres a skillset in it but can take time, hope this helps but might be a ramble too. gl out there and dont bluff me im a station lol