[header] How to acclimate two dogs [title] Perform a scent handshake before the dogs meet. [step] To give two dogs an introduction to each other before they meet in person, you can do what is called a scent handshake. This is when you swap the dogs' blankets to allow them to get used to each other's scents. 
[substeps] Take the blankets off of the dogs' beds and swap them so that each dog has the other dog's blanket. Try to do this at least a day before they meet to give them a chance to investigate the smell and get used to it.