Hey there,
the best approach for me at a poker table is a balance between full focus for strategic play and strategic talking for social dynamics and misdirection. While you need intense focus on the game, including opponents' strategies and your own ranges, engaging in some friendly conversation can help create a better atmosphere, build rapport, and be used to your advantage to misdirect opponents. It's crucial to avoid talking that reveals direct information about your hand or involves collusion.
Good luck,
Natox