Body language is a good sign (from either dog)
We were at the vets last night for Taz's booster and a guy bought his springer over to say "hello" to my two. He seemed fine with Kira, but when he was sniffing Taz the spring suddenly went very still and Taz immediately backed up under my chair. The owner didnt seem aware of the body language at all, but i must admit I was getting ready to move Taz even before Taz moved himself.