The person appears to be a/an Indian Male, approximately 40 to 49 years old.
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.
Key mistakes to avoid when delivering a presentation in a professional or academic setting include: lacking a clear and logical structure, going off-topic instead of staying focused, speaking too quickly or unclearly, failing to maintain eye contact and use effective body language, neglecting to incorporate visuals or engage the audience, not practicing sufficiently and being unprepared with the material, overwhelming the audience with too much information, skipping pauses for questions, and not concluding with a strong, actionable summary.