"It's nice to know that I was being rested [at Sunderland] for the big game," he told The Sun. "The complete opposite of how it was at United.
"It's surprised me how well it's gone because I wasn't sure. This was the first club I have moved to. I was at United since I was 15.
"I think I have settled in well. I've come here to start showing people how good I am."
Gibson has made eight appearances for Everton and scored one goal.