While it is important to put your best foot forward and make a great first impression, that's not all there is to you. You're way too special, amazing and multi-faceted to get to know in one single moment... so don't put so much pressure on yourself. Sure there are times that are important, like first dates and job interviews, but there are millions of other moments that need your attention.
Just be you at all times.
That matters the most to the people who matter the most.
Keep the light on!