It takes him a moment to respond to both the question and Picard's presence, the briefest hesitation where he wonders if he ought to stand and announce "captain on the bridge" before he squashes the fancy. While it may look like it, this is no starship bridge, but Picard's presence does merit genuine acknowledgement. He does stand - a little more slowly - to face him; his inheritor by a couple of hundred generations. Not quite the kind of man he'd imagined him to be, but then this isn't quite the kind of ship he'd imagined either.

"Worry? Oh--about my aspirations?" It's more conversational he guesses, rather than real concern, but he's also well aware that captains from his generation and beyond had earned themselves reputations as reckless cowboys. Archer prefers to think of himself as a frontiersman, more explorer than plunderer, but had he been in Picard's position then he too might have been wary of having another captain on board, nevermind how confident he was in his crew's loyalty. "No... No, nothing to worry about. Just a little homesick, that's all."