It must have been something you said.
It must just not have meant to be.
He/she was obviously the problem.
Making a good impression on him/her.
Having a good time on your outing.
Seeing if he/she is good enough for you.
What you find interesting.
What he/she finds interesting.
Common interests you both enjoy.
Clothes you think will impress him/her.
Whatever you feel like wearing.
Something comfortable and casual.
You find out when it will suit him/her and make sure to clear your schedule.
You let him/her know when you are available and say you will call.
You find out when it will suit both of you again and ask to see him/her again.
Follow through with what he/she has planned.
Persuade him/her to do something you want to do.
Let him/her know what you would prefer to do and find out if they agree with you.
A few hours.
At least a week.
One or two days.