Video one shows the content of the box. Video two the rules: 1) placing tiles, 2) walking & 3) building. And video three is all about strategy.
1) Go for the sets, not for luck.
You can of course walk away from the other players in the hope, that you can put a nice point tile, near your wooden figure and far away from the others. For this however, you need luck and you will see that this way of playing (almost) never pays off. It's more interesting to ensure that you get as many complete sets as possible. And therefore you should also visit the points tiles placed by the others players.
2) Build Rifugio's!
If we assume that all players try to get as many sets as possible (see tip 1), then the difference is made by the strategic placing of the huts (Rifugio's). Strategic positioning means that you place the hut in a spot where others will likely come to pass. The real challenge then becomes: placing the tiles in a way, that the others will have to pass your hut!
3) Finds the right balance between placing huts and achieving the sets.
If you are too busy building the huts and therefore forget to get your own sets, then it is possible that the other players use your huts to gain tempo and eventually get more sets than you. And thus win. This you wanna avoid.
4) Avoid tempo loss.
In general you never want to stand still for too long. Or make too big a detour. The higher your walking tempo, the more chance you will have of achieving all the sets.
5) Manipulate your fellow players.
Instead of hoping to draw that one mountain top from the pile (luck), you can also use a forest tile to prevent a mountain top from being placed next to certain rock tiles. In doing so you manipulate your fellow players. Because if they later draw a mountain top, they can only place it next to rock tiles, which are free. Preferably with your puppet nearby ;)