Instructions
Instruct your probes to build a nexus for 400 minerals.
Command your probes to build a gateway once the nexus is complete. The gateway costs 150 minerals.
Tell your probes to build a cybernetics core after the completion of the gateway. The cybernetics core costs 200 minerals.
Order your probes to make a stargate once they finish building the cybernetics core. The stargate costs 150 minerals and 150 vespene gas.
Click the stargate. Select the scout icon in the bottom right corner of the screen to build a scout. Each scout you build costs 275 minerals and 125 vespene gas. Click the icon multiple times to build multiple scouts.
Click the scout to select it.
Right-click any space on the battlefield to order your scout to that location. Use the scout to scout the battlefield and locate the enemies' positions and movements.
Right-click any enemy to attack it with the scout.