Noob question: should you always pot preflop when you play the button?

[luckyjimm]

Just wondering if it makes sense to raise the pot on a six-max table on the button when everyone earlier has limped, when you have a playable hand. Sorry if this a super-obvious thing to do, but I'd not been doing it automatically and am just trying it now. I'm not saying repot if there's been a raise already - that depends of course on your hand! - but when everyone's limped. If a limper comes over the top, you can decide what to do with the benefit of knowing you'll have position on him.