"No, no, I gotcha." Harry dropped his gaze with a self-conscious smile, suddenly embarrassed by the compliment, and felt a slight blush begin to spread despite his attempt to ignore it. It wasn't that he was entirely unfamiliar with compliments, they just...didn't appear often, and the last time they had....well, that was firmly number one on 'Harrison MacKenzie's List of Unmentionable Topics', so it was mostly nowhere near his daily radar.
He scratched the back of his neck, more for somewhere to direct the energy than because it actually itched, and forced his head back up to actually look at Tim. Sort of. "I dunno, feels kinda like a straitjacket, only without the buckles an' stuff. It's all...tight. But thanks for sayin' so, an' I mean...somebody gives you a box of clothes an' says 'wear these,' it ain't really your place to say no, yanno? Just be rude if I didn't. ...Thanks for that, by the way, don't think I got anything nice to wear over here 'sides these, prob'ly woulda just ended up wearin' my tux shirt or somethin' otherwise." He smirked, since that clearly would have been inappropriate attire for this kind of thing even if it would have been infinitely more comfortable (yes, he knew it would have been inappropriate. No, it wouldn't have prevented him from wearing it anyway if he hadn't had another option suggested to him). "You look nice too, by the way. But anyway, guess I outta be goin' before I turn into a gourd, so...I'll see you around?"