When delivering a presentation, select all the options that you should not do: A$.$ Relax! B$.$ Speak slowly and clearly, making good eye contact. C$.$ Chew gum, rattle coins in pockets, crack your knuckles, etc. D$.$ Lean on your surroundings, turn your back to the audience, or cover your mouth while speaking. E$.$ Rehearse your presentation out loud multiple times. If possible, have a friend critique. F$.$ Arrive early enough to make sure that all technology is present and working, and resolve any problems you may discover. G$.$ Read your presentation from a prepared text. H$.$ Stammer, overuse the pronoun $$I$,$ or repeatedly say $$um$$ or $$uh$.$ I. Tell inappropriate jokes. J$.$ Shuffle your feet or slouch; move repetitively, for example, pace back and forth or sway. K$.$ Play with your notes.