Deadpool is super chill. He would lift his mask so Hawkeye could read his lips, and if I remember correctly he actually took time off just to learn sign language so he could talk to him easier.
I don't think Holland would be the best Spidey for a Spideypool movie. He's way too young. Though it could be interesting just like "oh shi- no wait there's a child here"
Wait...you meant the other one, didn't you?