The ease with which he plays with relations. Read the article I linked, or at least read the quotes I copy/pasted. SLE behaves differently and has a different effect on people. He's a jock, yet he was apparently gentler than many in the treatment of others. The grounds for his appeal to the other sex also show high ethics. Again, SLE has a different effect, their Fe is needed to attract, but is 2D, and this gives a very off-on quality to one's appeal in close contact. SEE is this: "he held himself in a way that everyone thought he'd be very desirable for the opposite sex" Ease with relations.
Donald is an emotional man. Emotional rhetoric is his signature move. Being "likable" by the larger public is the domain of Fe and while Donald has been successful with this in the past (tv shows and more), his likability shows in close relations. Read testimonies of people who have met him. This is the area where his appeal is king, and it is the area of subdued ethical attentiveness.