Regardless of being tincture or freebase extracts, dosages are the same. and as for dosages, check the
FAQ, the first place one should look when having doubts
If you drink mimosa orally, you need to take harmalas orally. Taking them sublingually is only for potentiating vaporized dmt or for feeling them by themselves. When you take sublingual, they are being absorbed and are not inhibiting the MAOs in your stomach, which are what you want to inhibit when taking dmt-containing brew orally.
So yes, in the case of the tincture you can just put it in a glass and drink it.
By the way, when making a new thread, you should think that others in the future can make use of the thread for answering their own questions, so a thread title like "help please" is of little help to others, since they wont be able to see what the content is about unless they click on it. So next time better try to describe what the thread is about (I edited for you, hope you dont mind)