Verb + ~ing or to ~: Try to do

I2. Try to do = attempt to do, make an effort to do. (e.g. I was very tired. I tried to keep my eyes open, but I couldn't)
a. try also means 'do something as an experiment or test'. (e.g. These cakes are delicious. You should try one. (= you should have one to see if you like it))
b. If try (with this meaning) is followed by a verb, we say try -ing. (e.g. A: The photocopier doesn't seem to be working. B: Try pressing the green button. (= press the green button - perhaps this will help to solve the problem))
c. Compare: I tried to move the table, but it was too heavy. (so I couldn't move it) vs. I didn't like the way the furniture was arranged, so I tried moving the table to the other side of the room. But it still didn't look right, so I moved it back again.)

more about the Gerund (-ing) and to ~ (infinitive)

Idiom 365

Practice Makes Perfect: said to encourage someone to continue to do something many times, so that they will become better.
Example: 'Practice makes perfect' has been revealed as the nation's most influential saying by the new poll. 

more about the Idioms...