You enter manual aim by double-tapping the right side of the screen or tapping the weapon icon. You then slide your thumb to move the reticle and tap the "bullet" icon to fire.
You can adjust the Aim Sensitivity in the game's "Controls" menu. This is highly recommended, as the default setting often feels "heavy" or sluggish. The Pros Gta San Andreas Android Manual Aim
"I actually prefer manual aim because the auto-lock sometimes picks a random pedestrian instead of the Ballas member shooting at me." [1.2] You enter manual aim by double-tapping the right
The reticle is clear, and the game features a slight "zoom" effect when aiming manually with rifles. The Cons This is highly recommended, as the default setting
The manual aiming system in is a significant departure from the original console experience, offering more precision at the cost of a steeper learning curve. How it Works
Crucial for missions like "Reuniting the Families" where hitting specific points (like helicopter rotors) is required.
"Manual aiming is a must for the sniper rifle and RPG, but for standard drive-bys or street fights, the auto-lock is way more reliable on a small screen." [1.1]