thank you! (sorry that i don't have as many head-canons for him. i love marvel movies, but i don't obsess over them the same way that i do for some other fandoms)
steve rogers is a biromantic ace.
he is not fluent in french. he only took two years of it in high school, but he likes to say basic phrases in it to try to trick people. unlike the case of that grunt, most people do not buy it.
he, sam wilson and nat become the best friends that have ever existed. there are many pizza parties and video games. also, there is arguing about who could kick whom's ass.
sometimes steve wonders what he and peggy could have had.
sometime during their search for bucky, when he and sam are talking, he realizes that his feelings for him are not purely platonic. sam helps him talk through it.
sometimes sam likes to scoop him up and fly him around on his falcon's wings.
after finding out that he likes men, too, natasha starts trying to set him up just about everyone. steve has to explain that just because he likes people of multiple genders does not mean he wants to date everyone with a pulse.
ironically, steve hates apple pie. he loves cherry, peach and pumpkin, though.