Audible Delight
    Back when I considered myself a coffee connoisseur of sorts, I learned that the proper way of drinking coffee is to slurp it.  It's apparently to mix in some air with your coffee so that you may taste the aroma as well.  However, I did find it a bit, I don't know... rude?  Nevertheless, it's not uncommon to hear the luscious slurping of coffee.  Bonus points for the ecstatic "AAAAAHHHHHHH!" afterwards.
    The same seems to be true when enjoying a hot bowl of ramen or udon noodles.  Slurp it in and enjoy!  It's a compliment to the chef so make sure he or she hears it!
    So while I did find it mildly rude to produce audible reverberations while enjoying a cup of coffee, I would still do it.  Considering how much it costs at coffee shops nowadays, darn it all I'm going to enjoy it properly.