How can a Christian at work let their light shine? I understand the person can say that they're Christian and they believe what they believe but they can't exactly proselytize at work because they're supposed to be doing their job.
Be the perfect example of Godly Love to the best of your ability with everyone in the workplace, and with everyone knowing that you are Christian in the workplace to the best of your ability and without overstepping your bounds in the workplace, and do your job with excellence and to the very best of your own ability always as an example/witness to your own employers always, etc...
And don't proselytize when it's not necessary and when in the workplace because most of the time it's not if and when you are already doing all of these other things already, etc...
And other than that, only share only what is necessary only when asked in the workplace, etc, and just only maybe offer them something that is outside of the workplace if they want to know or discuss any more outside of the workplace or beyond that always, and let them know that that is always open to them and is always available for them always, etc, and have something like that to offer them that is always open to them always, etc...
Then go back to my first paragraph up top and re-read this again always, etc...
Being like Jesus to them is always much more important than talking like Jesus to them always, etc...
Especially when that is not always permitted in the workplace, etc, the talking part I mean, etc...
More important is being/doing/behaving/acting towards them always, etc...
Talking can come later, and outside of the workplace if they indicate to you that they want to do something like that outside of the workplace always, etc...
God Bless!