Be honest about your situation while exercising discretion. If you are leaving because you had issues with your manager, proceed with caution. Your circumstance may betray your narrative or be perceived out of context. When leaving a job over interpersonal concerns, it may raise a red flag that you're not an easy person to get along with, or that you aren't adaptable to other personalities in the workplace. If you quit your job before lining up another, this could speak to impulsive behavior, a lack of planning or poor strategizing. If you were laid off or let go, that could reveal its own set of red flags.
If you are currently testing the field, while considering leaving your current employer, they'll be curious about how committed you are to your current employer, and evaluate to the best of their ability how serious you are about joining another team elsewhere. Your motives for leaving your job could be just as revealing.
