The game Monopoly is band from the Avengers tower, because the last time it was played Tony was in the lead and showing off about it, tensions rose, and the board was incinerated before the game was over. A similar thing happened when playing Risk.
Before most of the 107th got captured by Hydra, Bucky’s troop used to trade stories about the gals or wives they have waiting for them back home. Bucky didn’t partake usually, until one day he did, and he told them about the pretty little blond haired blue eyed ‘gal’ he had back in Brooklyn. So tiny and slim but with the bark and bite of a tiger once you set her off. Always wanting to do what’s right too. Dum-dum couldn't help but notice how he stopped talking about her after Steve joined…
When Johnny Storm and Steve Rogers met, Johnny started setting fires just above Steves skin in an attempt to make people confuse them with each other. The third time this happened was in an alleyway with just Tony as a witness. It was the first alleyway fight Steve has been in since the serum and the first one he ever won. Bucky is the only one who believes Tony and Johnny.
Bland Marvel Headcanon - the one where Loki befriends the author of the older Edda, who takes his silly, joking tall tales of home as truth and writes them down for posterity (Thor having to dress up as Freya, Loki having a baby with/as a horse, etc)