To answer the original question, I will not be "out" witnessing, I will be " in" witnessing.
Everyone is called to witness, or be a witness, in different capacities. For some, it is to be a witness by letting their light shine through their good works.
Others have been sent to the highways and byways. I think that our hearts burn for a particular demographic, or place, or someone who is where we once were
I have been called to the lost, in church. This is where I was. For 15 years my heart has ached for the lost who sit under ambiguous teaching, and leave each week in the same lost state because they never heard clear truth
My witnessing may be directly with an unbeliever, or it may be with those who peddle ambiguity.
For instance, recently there was a "convert" who said a "sinner's prayer" and was immediately scheduled for baptism three weeks later. The day comes around, and the convert is so excited. He said "today is my spiritual birthday"
I told that to his Sunday School teacher, and she fawned and said, "isn't that great?"
I raised an eyebrow and said, "ehh, I thought that happened a couple of weeks ago."
Her eyes got as big as saucers, and her entire frame slouched. I think the weight of the implication hit her with full strength, because she said "oh, my goodness."
She had been the one to supposedly lead him to Christ, yet had left him with the impression that baptism is the way to merit God's grace. And this is not a guess on my part, for he made that exact claim not long after that.
So I witness to the lost, in church. I don't presume to know what state anyone is in, I just preach Jesus, and Him crucified, in every setting there. Then I leave it in the hands of God to make a seed grow.
I'm at a different church now, with the same aim - to glorify the Son