“I'm keeping my options open.”
You're a first-year college student and you haven't decided on your major (your area of study) yet. You are talking to a professor who asks what your major is. You want to tell her that you haven't decided yet, but you want it to sound like a positive thing.
I'm keeping my options open.
To "keep your options open" means not to decide on something, so that you don't restrict yourself. It means to stay undecided so that you can still choose freely later on.
A: Have you decided what you're going to study yet?
B: No, I'm still keeping my options open.
"Keeping your options open" is usually thought of as a positive thing.
You can say "I'm ___ing" to talk about either the present or the future.
In this example:
We're going to my in-laws' house this weekend.
...the speaker is talking about the future. This is a plan which they have already made.
In this example, the person is talking about something that is happening right now:
I'm watching the news.
You have to pay attention to the situation to figure out whether someone is talking about the present or the future.