What should I do about this?

So my mom sells jewelry and 2 of my ex coworkers are coming over to buy some stuff but they decided to invite my crush over as well and apparently she's coming too I'm kinda nervous what should I do if she actually comes to my house? We got along pretty good when we worked together and we still text almos every day so yeah I'm kinda nervous and exited at the same time, there is a park right next to my house I was thinking of taking her over there to tell her how I feel what do y'all think?