Be wary of anyone who arranges for white roses to be painted red. There's conclusive proof of an outsized ego in action and it would probably pay not to be in the way of it.
In the magical world, very little really is as it seems so keep your wits about you. Though in common with our world, if something seems too good to be true, it is.
In the magical world strangers are (a) exiled kings in disguise, (b) evil witches or wizards or (c) some humble soul who is destined for greatness but doesn't yet know it. So be polite at all times, it will probably pay in the long run, don't turn your backs on said strangers just in case they are (b), and on the off chance they are (c) give them a hand. They're almost certainly due to save the world, which will benefit you too.