"Can I get" isn't rude, it's just casual. In a diner or something, I would have no problem asking "can I get," especially for things like coffee refills. In a formal setting, I'd use "may I have," but when Flo the waitress is making small talk with me, I'm not going to play Miss Manners.
“Can I get” vs. “May I have”
"Can I get" isn't rude, it's just casual. In a diner or something, I would have no problem asking "can I get," especially for things like coffee refills. In a formal setting, I'd use "may I have," but when Flo the waitress is making small talk with me, I'm not going to play Miss Manners.