How do you counter attack in grand theft auto 4?

In Grand Theft Auto IV, to counterattack during a melee fight, you need to time your button presses correctly. When an enemy attacks, press the counter button (typically the right trigger or a specific key on PC) just before the attack lands to Dodge and retaliate. This requires good timing, as you need to anticipate their moves to successfully execute a counter. Practice makes perfect, so engage in fights to hone your skills.