1. I would say you need at least 3-4 limpers before you act. These are hands you should be playing late. KXs is even somewhat questionable of a call and should only be done on button or possibly in the blind if no raises have happened. If the pot is raised, these hands hit the muck.


2. I would say to definitely avoid the KXs from an early position. In a loose, passive game where there isn't much raising, you might opt to play AXs but it is questionable.


3. It depends. If you think everyone might fold, then bet. You might bet anyway just to build the pot but I think the free card is a better option if you are up against more than 2 people. You can play it either way, and the deception in playing it both ways will keep your opponents guessing. However, if you bet and someone has a very strong made hand, you might get checkraised. So like I said initially, it all depends on your competitors and how you feel.