Learn English – I’m waiting for you ON/AT/IN the second floor

It is "waiting for me."

*Waiting me" is not standard English.

Also, the preposition on is not correct here. It should be in or at.

The correct form would be

I am still waiting for results.

Alternatively, you could use the phrase

I am still waiting to get the results.

Note that "to get" here is used together as a verb, not a preposition as your post was asking.

The preposition "for" can be used to designate a reason akin to "because."

I am waiting for you.

The preposition "to" can be used to indicate direction, relation, or even a time-span.