This is a meet new people event. I don't know who needs to hear this, but mixers are for anyone & everyone who wants to step out of their comfort zone & try new things. Are you a partnered person? Great. Are you a single parent? Great. Are you new to the city? Old to the city? Either is great too. Are you over 30? Wonderful! Basically, as long as you are a nice person with a reasonable understanding of boundaries, then come and meet new people. 

There are two rules: 

1. Don't talk about work

2. Be kind & respectful of everyone :)