Debutant Williams: I felt nervous, excited, scared...everything!
Williams went into the action as a second half substitute for Chris Herd and slotted in wonderfully at left-back.
But the calm exterior of the 19-year-old betrayed a sea of sensations as he stepped up for his first-team bow.
He said: "It was good. I really enjoyed it.
"I didn't know what to feel. When the gaffer said my name I was nervous, excited, scared...everything.
"When I got out on the pitch though I felt comfortable. It was a great feeling.
"And it was obviously good to get a positive result. It was a good atmosphere too. The crowd feel right on top of you at Loftus Road. But it was good to hold out for the point."
Williams revealed reassuring words from the manager before he entered the fray helped him cope with any lingering anxieties.
He added: "The gaffer said 'you wouldn't be here if I didn't think you were good enough.' That helped a lot. That gave me a lot of confidence as I went out to play.
"Having other academy graduates out there helped loads too. Just thinking that they've been through exactly what I've been through with the likes of Tony and Kev.
"I just got out there and concentrated on getting tight to the QPR lads as much as I could. It worked so I was very happy.
"The whole team were superb. I thought the back five were class. I thought we were on top at the back.
"I want more now. I will keep working hard now and hopefully I will get another chance."
Snap up your tickets and back the boys against Stoke.