Question

When speaking with someone you don't know very well (usted), how would you command this person to speak? (use the affirmative usted command form)

Answer 1

To speak- hablar
The rule for usted commands
1. Go to yo, present tense Hablo
2. Drop the o Habl
3. Add opposite ending Hable
So you would use hable to command someone in usted form

Answer 2

Present tense: Hablo
Change it to Hable