Drinking: Baileys and Milk.
Modern technology allows us to say 'fuck off' in a socially acceptable way.
Headphones are like the 'do not disturb' sign that you find hanging on hotel room doors. You enjoy the music, whilst everyone else knows to leave you the fuck alone, without you even having to lift a finger.
It's a magical people repellent.
We all know that headphones can get us out of those awkward situations. It comes in handy in easing out of conversations. It's good to use to 'subtly' ignore people.
So, get out your earphones/headphones and while you're at it, a big pair of sunnies. People will know you mean business, and they'll bugger off.
embrace solitary existance.