It's a common phrase used to express that you have observed something, either physically or conceptually.
Here are some examples:
* Veo que estás cansado. (I see that you're tired.)
* Veo que te gusta mucho el chocolate. (I see that you really like chocolate.)
* Veo que hay un problema con tu coche. (I see that there's a problem with your car.)
* Veo que la situación es complicada. (I see that the situation is complicated.)
The verb "ver" (to see) can be used in the present tense, past tense, or future tense, so you might also hear phrases like "vi que" (I saw that) or "veré que" (I will see that).