During public speaking, the speaker tends to speak or pronounce wrongly even s/he is speaking the own language due to nervousness & stage fright.
1) How should I describe the perfomance of the above speaker?
2) Shall I say, "His voice faltered as he began his speech."? Any other better description/expression in native English inoffensively?
3) For the movement of babies, besides the words, 'wiggling', 'kicking', 'moving', are there any expression to replace them?
Tks / ju