If there’s nothing special happening and you are both bored, then saying hi will just come off as being social.
The disadvantage however, is that if you randomly ask for someone’s opinion, they might think you’re polling a survey or something.
They might be on the defensive right away since people automatically avoid salesmen on a daily basis.
The one context where an opinion opener will be acceptable is in a social environment in which everyone is already talking, ie: party or a bar.
The number one rule on how to start a conversation with a girl you just met is easy: keep it simple, keep it fun.
When you talk to a woman for the first time, remember that she doesn’t know you and anything too intense will push her away.
Instead, use these conversation starters to get her more interested.
Make a comment about something around both of you at the time.
If you’re at the library, mention something about the librarian at the door or even about the funny security guard at the entrance.
An environmental opener can be used anywhere, but it does take a bit of quick thinking depending on where you are.
Just say “hi” Sometimes just saying hi is enough to get a decent conversation started.
This works especially well in boring situations such as waiting in line.