1. He gave a signal to the two lions.
2. He motioned to the two lions.
3. He motioned the two lions to sing opera.
4. He motioned for the two lions to sing opera.
[Are they grammatical? Does #1 mean #2? Is there any difference between them?]
2. He motioned to the two lions.
3. He motioned the two lions to sing opera.
4. He motioned for the two lions to sing opera.
[Are they grammatical? Does #1 mean #2? Is there any difference between them?]