The person appears to be a/an White Male, approximately 40 to 49 years old.
Key mistakes to avoid when delivering a professional presentation include: failing to establish a clear structure, rambling instead of staying focused, speaking too quickly or unclearly, neglecting eye contact and effective body language, omitting visuals or audience engagement, insufficient rehearsal and lack of material mastery, overwhelming the audience with excessive information, not allowing pauses for questions, and neglecting to prepare a concise and actionable conclusion.
Common pitfalls to avoid when making a presentation in a professional setting include: not having a clear structure, rambling instead of keeping to the point, not speaking slowly and clearly, lacking eye contact and other body language, not using visuals or allowing for audience participation, not rehearsing enough and failing to know the material well, talking too fast and overwhelming the audience with information, not taking pauses and allowing for questions, and not preparing an organized and actionable conclusion.