dip your toe into something
dip (one's) toe into (something)
To tentatively begin or get involved in a new experience. Likened to gently placing one's toe into water to test its temperature. I studied graphic design in college, but I've been dipping my toe into writing fiction lately. I've always wanted to travel the world, but I've never left the US. I'll dip my toe into it this summer, though, with a short trip to Toronto.
dip your toe into somethingbegin to do or test something cautiously.
The image here is of putting your toe briefly into water in order to check the temperature.