Nicely put, Sir.Being able to smile, nod, greet or generally acknowledge people without it raising a concern or caution in them.
Older folk acknowledging and thanking youngsters when they are polite or helpful. (Really raises my hackles when a child or teenager hold a door, step aside or pick something up and the older person they are respecting just blanks them !)
Being able to speak to a child / youngster whether positively or in mild rebuke (e.g. please stop stepping on my foot.) without being verbally attacked by the adult with them.