Acknowledge the effort and the courage. Lift your speaker's self-esteem to a new level through accurate observations and precise recommendations. We're all different, but we all come to Toastmasters for the same reason, to improve our presentation skills. Evaluate the speaker's ability to effectively make a point. Your opinions about the value of the point can be shared at some other time.
Toastmasters is about presentation skills.
Show the Speaker How to Improve Act out your recommendations. You get to experience the recommendation you're making, thus making them your own. We learn best by teaching others. Show and share. Watch yourself grow as well.