I keep a few funny anecdotes ready to go for awkward moments. People love hearing about embarrassing stories - it makes you more relatable and usually gets them sharing their own stories too!
Silences aren't always bad! Sometimes a comfortable pause can show you're at ease with each other. If it feels awkward, I just smile and ask "So what's something you're really passionate about?" - people light up when talking about their interests.
Pro tip: Comment on your surroundings. "That painting reminds me of..." or "Have you tried the [menu item] here?" Works every time and keeps things natural.