Drawing Trednlines on A chart

This is very simple 

uptrending trendline 

First you need to identify that the market is making  series of Higher high and Higher Low , next identify at least two higher low and attach a line connecting them 

another option is to convert to line chart  to remove the price noice caused by the winks of the cansles 

Downtrending trendline 

You need to identify that the market is making  series of Lower Low and Lower High , next identify at least two lower High and attach a line connecting them 

i hope this was helpful tell me your thoughts on the comment section below