Warren: his face heats up like fire, he’s a cheeks, the tips of his ears and chest blusher who just stands there frozen to the spot, his wings fluttering behind him while he turns his head away from you (as if that could his red face)

Kurt: his cheeks and the  tip of tail blush light lavender, very bashful and trying to hide his face, a small shy smile as he looks up at you

Peter M.: bright cherry red cheeks, he can’t stop smiling and giggling at you

Peter P.: bright red cheeks and the tips of his ears, he starts stuttering out nonsense while waving hands frantically in wild gestures

Sean: he’s a full body blusher, that can’t speak. Words just don’t form while he attempts to figure out a flirty comeback

The best way to handle all of these though, is to gently grab his face and press a sweet kiss to his lips