"Huh?"

The way that Natsu tilts his head is so cute but frustrating. You had just given him a subtle compliment about his body, the physique he's built over the years, but Natsu doesn't understand that you're flirting with him.

You wave him off as if to say 'it's nothing', and he goes back to looking at the mission board. You stand next to him, arms crossed and a pout on your face. "Hey, wanna do this one?" He points to a mission on the board.

Maybe you need a more direct approach.