How do i make my son learn to sit on potty.he always tell me after he does chit?

My son will only sit there if I totally undress him (socks included)...lol.... maybe its a man thing! I hear that when in the buff, they are most comfortable. Honestly though, he wont sit there unless he can freely twinkle his toes..get it? lol Good luck...patience, patience, he will do it!!!