Many men don’t smile on pictures because they think it’s a sign of weakness or turns you into a „beta“.
Actually, the opposite is true.
Smiling makes you more approachable, shows that you’re happy and enjoy your life.
If you’re looking at the camera I recommend you to smile, because you’re making eye contact with the women seeing your picture.
If you go for a big smile with your teeth showing, you look more:
So a healthy smile that shows your teeth is usually better than smiling with your lips pursed.
Of course it’s also important „how“ you smile.
If you’re just forcing the smile, everyone is going to notice that.
Make sure to really be in a happy mood when you take the picture and that your smile looks very natural.
You can achieve that, by for example cracking jokes with your photographer, or watching your favorite funny videos right before the shoot.