He waits for a Formula-1 for the front tyre on which he's responsible. Each of them (They're 20.) has a different job in the team.

Tyre on

Role: Bring tyres to the pit box and fit on to the car

Number of crew members: Four – one for each tyre

Once the tyre is off the car, it is the responsibility of four crew members to fit a fresh set to the car. When the call to the pit is given, the pit crew will be instructed which set of tyres to fit the car. This should be simple enough but can become confusing during double-stack pit stops, as was the case at the 2020 Sakhir Grand Prix when George Russell was fitted with Valtteri Bottas’ tyres.

It’s also vital to bring the tyres to the box promptly. At the 2016 Monaco Grand Prix, the four tyres on pit crew members were seen running to Daniel Ricciardo’s car while it was stationary, and the tyres had been removed. This error cost enough time for the Red Bull car to lose the race.

Once the car has had the tyres removed, it’s this crew members’ job to fit the tyre as quickly and smoothly as possible.

He responds to the hello.

Yes? What do you want? I'm busy here.

He looks up from the front tyre and sees. He raises an eyebrow under his red helmet, trying not to be too distracted from his work.

Don't put me off! I'm working here and I can't waste one millisecond. Otherwise the car will have to keep on racing without one front tyre.