In the Google search box, type the subject followed by “gif,” like “Charlie Chaplin gif.”
On my iPhone, I choose the image I want by clicking on it so that it’s enlarged, then I lightly hold my finger on the gif and a menu comes up with the word “Copy.” Click Copy, then on the SKMB, go to the reply box. Click the little pic next to the smilies icon and a box will come up to enter what you’ve just copied. Click in the entry box and a menu will come up—click “Paste.” Then click “Insert.” You should see your gif come up in the reply box. Post reply!