How to deal with a close group in the workplace?

Hello Lu,

Thank you for your question. I am sorry to hear that you feel like an outsider in your work team. It can certainly be a challenge to break in to a group that was already established prior to your participation. I do want to encourage you to not think the worst and to try and challenge the belief that they are talking about you while they are whispering to one another. It is equally likely they are saying something personal, talking about an inside joke, etc. I know it might not feel that much more comfortable if that's the case, but I say this to implore you not to make assumptions. You do not know what is being said. However, you do know that they are whispering and that whispering makes you uncomfortable. It is okay to gently and assertively say how the whispering makes you feel excluded and that you would appreciate being acknowledged as a part of the team. Speak with "I statements" and address the behaviors that the others are engaging in that are contributing to making you feel unwelcome. 

They may just not be aware how their very habitual means of interacting are impacting you. Try to not draw conclusions unless they explicitly tell you they do not want to include you. If that does happen it is also okay to speak with management/hr about the effectiveness of being placed on that particular team. It is okay to advocate for better arrangements. 
Remember that if they are intentionally ignoring and excluding you that that is entirely on them and their issue. Remind yourself about all you have to offer and what skills and resources you bring to the team if they would just give you the chance. 
Again, I'm sorry this is what you have been experiencing. It stings to be left out of a group. Especially one you have to be around hours on end. Advocate for yourself with them first and get to know their intentions. If they are being immature it is okay to take your concerns further. I appreciate your question and wish you well. Take care.