Willing to do absolutely anything!
Taking pleasure doing everything that my partner enjoys.
Teasing until he's begging.
A natural high sex drive helps a LOT - wanting to have him anywhere at anytime, and suprising him with these requests or just actions (grab him, pin him against the wall and say "I Want you NOW")
Tenderness - so careful to listen to my partner, notice what he loves, what he likes, and what he can do without.
And genuinely caring about whether my partner is enjoying himself as much as I am or not.