He didn't think anything of it. Goku was used to being stared at for a variety of reasons, and this was something else that was entirely normal for him. Eating out half the restaurant...yeah, he could handle that.
"Sounds great! I'm starved!" he blurted, happily going to take a seat at the table that she was heading towards. "You must like this place a lot then, huh? They seemed to know you here." He liked her too. She was willing to pay for his food and hadn't even said a word about it. Wait until King Kai heard this one! ChiChi would probably be livid to know that he got free food from another GIRL, but hey. Goku would take it where he could get it!