Should I text him

We've been talking for around a month yesterday he asked when we were going to get together I suggested maybe sometime this week but he said he was working. So I said ok we'll figure it out...then he didn't text me back...get usually does like around the afternoon but he hasn't should I just text him and say hi? I wasn't the one to bring up hanging out so I think he's interested... would you text him or wait for him