"but how we chceck? you have to participate on some event, that means, you will recieve teachings already, if no also initiation...
"
Good point. This speaks to the continually degenerating situation of the Dharma in this dark age. These days, the only time many students get to be with a Teacher is when They are teaching. In old Tibet (and in many cases in India, Nepal, Sikkim, and Bhutan today), students could watch the Teacher as They went through Their daily activities. They could ask around about a Teacher, especially from others who had had close personal experience. The fact that these days, all too often, one's first exposure to a Teacher is an empowerment is, IMO, not good. It's not good for the Teacher, for the student, or for the Dharma.
I have said it before on DW and I will say it again: Best to find a Teacher with Whom you can develop a close personal, on-going relationship in which there is the possibility of really examining and even testing the Teacher before making an irrevocable commitment. When people say that these days that's not possible, wrong. It is possible. However, it may take lots and lots of energy (of all types, including monetary), bravery, intelligence, perseverance, renunciation, and maybe even real hardship. There are plenty of good Teachers out there with Whom one could forge such a relationship
if one has the will. These are not the top-tier, world-famous, "multi-national" Teachers. They are the
beypai naljor, the hidden yogis -- although some of Them may be hiding in plain sight. They are Teachers Who actually live with Their students for months at a time (if not all the time). However, to find and be with such a Teacher, you are probably going to have to "give up your homeland."