conversation topics

I'm meeting a boy on Friday and it's just a friendly level but we were supposed to only be going to the cinema and now we might be going for lunch. I thought I would be able to manage just the cinema as I won't have to talk but 1. I hate eating in front of people and 2. I have anxiety so I'm panicking, is there anything I can bring up to try and prolong the conversation and prevent awkward silences