I'm one of three at manager level of a team of 12 people. All professionals in an open plan office environment. One of the newest, youngest members of the team is super keen, a bit loud and can be described as "marmite". I think she's a great addition to the team and love her energy and enthusiasm but I'm also aware she needs close supervision so she doesn't go off on the wrong track with things. One of the other managers has mentioned more than once that this junior colleague is always gossiping in the office, being negative and spreading rumours of bad news about the business. I have never witnessed this. I am in the office a lot and have been trying to observe her in action. He says she's making the other juniors worry about things and generally stirring up issues over nothing. He wants me to speak to her about her behaviour. I don't want to tell him to do it himself as I think he possibly just doesn't like her and would be too blunt. What do I do? Do I tell her gently how she may be coming across to others so she can modify her behaviour? Do I speak to the other juniors to get their views but risk tainting their opinions of their new team member if (like me) they have never seen negative behaviour from her and it's just this other manager's personal gripe?