Brian is timid. Some of this will be settling in nerves, some will be what he has survived, and goodness knows what in breed faults there maybe also.
I tend to leave him to come around, eg. walking through glass sliding doors. He has the usual amount of time to decide to come through with other dogs. Too slow and the door is shut, and he has to walk around the house to the dog flap.
Im using my dogs innate laziness to speed him up on overcoming fear there. And its working. He rarely baulks on the thresholds now.
With meeting people in our house, ive asked folks to ignore him, he then gets curious real fast. and within 3 mins of entering the house, he'll be sniffing them and wanting a pat. Except my daughter's boyfriend, who Brian is very fearful of.
One factor of my family, my brother in law, is not to be trusted around dogs, women, or kids in my opinion. so when he is around, i lock the dogs behind a gate. BIL can look, but is not allowed to enter the dog pound. As i dont like him/trust him and wont let him near my dogs, having seen the mess he made of his. So i protect him from uncontrolled environments or uncontrolled people.
I tend not to pay any attention to his fear behaviour. Just matter of fact confident handling, not buying into how scary that red plastic bag is flapping in the wind etc. One loony on the end of leash, is enough. He doesnt need me going to pieces too.
Isnt it frustrating the amount of sodding dog whisperers there are, who believe by smiling directly at the dogs face, as they walk toward them, full eye contact, head to head approach is gonna work! aggggh