Smiling unnecessarily

[Rawr]

Here in Britain we do awkward smiling a lot, followed by overthinking of the awkward smiling, followed by playing the situation over in our heads and picturing how we could have handled the situation in a cooler manner.

Easier said than done, but you should be more concerned over your concern of your awkward smile, more so than being concerned by the smile it's self. I doubt many people think it's awkward and are in fact, most likely thinking of something similar about an insecurity of their own rather than focusing on yours.

IBD is right, and again it's easier said than done. But put yourself out there and with time you'll feel a lot more comfortable. Remember that we all think negatively towards ourselves and if you're feeling embarrassed, maybe switch that negativity into positivity and compliment who you're with i.e. I really like your top, eyes, hair etc...