As a guy, I can say some clear signs of a big ego are never admitting when he’s wrong, constantly needing praise, and getting defensive over even small criticisms. In relationships, this often shows up as him needing to “win” arguments, making decisions unilaterally, or putting his own needs first. Not making excuses, but we men can sometimes mistake ego for confidence—watch out for behavior that’s about control or superiority rather than self-assurance.