The first impression is frequently the most accurate impression. So, this is why wise people warn others that, 'you never have a second chance to make a first impression'.
Not true...you won't know someone by talking to them or seeing them just once.
Usually but not always
No not the best but prob the not accurate. They don't have time to work out what they think you want to see.
You only get one shot to make a first impression
don't live by it