I don't know what they're saying, but I completely understand if they are annoyed at Kogasa for liking food and drink instead of the awesome Gundam replica.
The kebabs are yummy too—these food stalls are the best!♡We Stopped in on the Way BackAwwwesome!♡EELWritten backwards; very old-fashionedAwwwesome!♡Look at the Gundam.A 1/1 scale Gundam!♡Shizuoka Cola!♡