call is by far the best line here.
If the board was K92 then ok, but K74 there are significantly less hands with equity that will jusr cram. You can't expect QJ or something to cram here but on boards like 872 where we have 2 pair its far better to click as they can spew even 1 over card etc.
clicking it seems quite bad imo.
mmmm agreeing with pleno again. In theory clicking here can represent a bluff but in practice it almost always means nutz - unless you think opponent is v bad and v spewy just call.
can we ever be bluffing if we call though?
Yeah you're rarely bluffing when you call but you're also rarely bluffing when you min 3 bet the flop. You're not really trying to rep a bluff here (apart from maybe some sort of straight draw). You're trying to convince your opponent that your hand is weak, like some randon kx, 7x, qq etc so that they keep value betting worse and continue bluffing and maybe even hit (what they think is) a decent turn card.