Attitude Is [Almost] Everything
I often play a little game with myself when I have to go shopping; to the post office or on other errands.
Sometimes I will just go about my business and make little comment or eye contact with the person serving me. Other times I will smile and talk to the person. Ask them how they are. Even make a joke!
The difference is incredible. And it is amazing what affect it has on both them and me.
If I take the effort to engage the person in a conversation and make eye contact - almost without exception their face lights up, they smile and are friendly back to me....