If you want to bluff, you will need to make it believable. For example if the board is dry ( not connecting ) then the only bluff would be highest pair, two pairs or a set but if you are in position but you checked twice then it is highly unlikely for you to have anything. If you have something, you are most likely not going to check twice
I'm not good at bluffing .. although I tend to agree that bluffing is one of the most interesting aspects of the game. But I'm not sure if I'm doing the right thing that I rarely bluff when I play Betomi, although this is a rhetorical question considering that there is an almost 100% chance that you will be called even with a VERY weak hand. But in such a narrow circle as ours, the absence of a bluff is a disadvantage, since the success of a bluff is determined by the opinion of other players. In any case, I am with both hands for the third series!