KQs play depends on position.
If you are out of position try to limp and on later streets throw in a feeler bet just to ensure your hand is already not beat, else you'd be drawing dead.
If you are in position, rely on c-bet to weed out weaker hand like Ace-rag especially when you're drawing for flush.
It is a lot harder than it is mentioned above, use your discretion.
A9o, A8o, A7o, A6o are pretty much prayer cards where you need very strong prayers on all 4 streets hoping nobody has an Ace "AND" nobody has a stronger kicker than you.
A5 and below, you're pretty much drawing for straight or straight flush(rare)