That's a good question. I take it you might be referring to "давайте познакомимся"?
Of course, we would say "Nice to meet you." almost always after giving our names. But, after that, there are many options. We unfortunately do not have a standard phrase. I think one common method is to ask a question about how the person came to the place you are both in. Another one is to rely on a someone whom you both know and ask them how they know that person. Often we proceed this with "So..."
For example:
- So, what brings you here?
- So, how do you know ...? (... = the person who is hosting an event)
- So, I see that... (then ask a question)
I hope these ideas help! In summary, the best thing to do is usually ask a question straight away because it would indeed be a little awkard to say "Let's get to know each other".