Speculating

He has been speculating on his future.

I am speculating that he may win the game.

We were speculating.

I'm not speculating.

I was just speculating.

In a Club, though there mayn’t be a soul of your acquaintance in the room, you have always the chance of watching strangers, and speculating on what is going on within those tents and curtains of their souls, their coats and waistcoats. This is a never-failing sport. Indeed I am told there are some Clubs in the town where nobody ever speaks to anybody. They sit in the coffee-room, quite silent, and watching each other.

He made a killing by speculating on the stock market.

We were speculating on that.

Evolutionary psychology is a political project which aims to justify social hierarchies by assuming they are innate and speculating as to why.

[…] whereupon ensues a long course of theatrical speculatings and practisings […]