I've been texting this guy I met at a friend's party for about two weeks. He responds to my messages and asks questions back, but I can't tell if he's actually interested or just being nice.

He'll text me every few days, usually responding within a couple hours. The conversations are fine but nothing super flirty. He asks about my day, makes occasional jokes, but never suggests hanging out.

My friend thinks he's interested because "guys don't text if they're not into you." But I feel like some guys are just polite and don't want to be rude by ignoring messages.

Last week I mentioned a restaurant I wanted to try and he said "oh that place looks good." I thought maybe he'd suggest going together but he didn't. Just moved on to another topic.

I don't want to assume he likes me and embarrass myself. But I also don't want to keep texting someone who's just being polite and secretly hoping I'll take the hint.

How do you actually tell the difference? What signs show genuine interest vs just basic politeness?