1. Get your latte froth read by a professional.
2. Face off with a magpie.
3. Bust out some very cool disco dance moves.
4. Stick a pen between your teeth and grin.
Yep, it's the last one. Science tells us that the woo woo notion of fake it til you make it is an actual thing that works, at least sometimes. When you shape your face into a smile (by whacking a ballpoint pen between your teeth for a couple of minutes) your body will think you're smiling and accordingly, will release happy endorphins. And you'll feel better.
Doo doo dee doo X