If you just open a manpage like: 
`man cowsay` 
You can then type: 
`/AUTHOR` 
to find and jump to the AUTHOR line, for example. Or: 
`/myFunction` 
to find instances of `myFunction` in the manpage. 
(If there are multiple instances, you can press `n` to go to the next instance)

Also, if you're in a man page, you can type `h` and get a summary of less commands like below. I cut them off after parts I thought were relevant to you, but there's more.
<pre>
 SUMMARY OF LESS COMMANDS

 Commands marked with * may be preceded by a number, N.
 Notes in parentheses indicate the behavior if N is given.

 h H Display this help.
 q :q Q :Q ZZ Exit.
 ---------------------------------------------------------------------------

 MOVING

 e ^E j ^N CR * Forward one line (or N lines).
 y ^Y k ^K ^P * Backward one line (or N lines).
 f ^F ^V SPACE * Forward one window (or N lines).
 b ^B ESC-v * Backward one window (or N lines).
 z * Forward one window (and set window to N).
 w * Backward one window (and set window to N).
 ESC-SPACE * Forward one window, but don't stop at end-of-file.
 d ^D * Forward one half-window (and set half-window to N).
 u ^U * Backward one half-window (and set half-window to N).
 ESC-) RightArrow * Left one half screen width (or N positions).
 ESC-( LeftArrow * Right one half screen width (or N positions).
 F Forward forever; like "tail -f".
 r ^R ^L Repaint screen.
 R Repaint screen, discarding buffered input.
 ---------------------------------------------------
 Default "window" is the screen height.
 Default "half-window" is half of the screen height.
 ---------------------------------------------------------------------------

 SEARCHING

 /pattern * Search forward for (N-th) matching line.
 ?pattern * Search backward for (N-th) matching line.
 n * Repeat previous search (for N-th occurrence).
 N * Repeat previous search in reverse direction.
 ESC-n * Repeat previous search, spanning files.
 ESC-N * Repeat previous search, reverse dir. & spanning files.
 ESC-u Undo (toggle) search highlighting.
 &pattern * Display only matching lines
 ---------------------------------------------------
 Search patterns may be modified by one or more of:
 ^N or ! Search for NON-matching lines.
 ^E or * Search multiple files (pass thru END OF FILE).
 ^F or @ Start search at FIRST file (for /) or last file (for ?).
 ^K Highlight matches, but don't move (KEEP position).
 ^R Don't use REGULAR EXPRESSIONS.
 ---------------------------------------------------------------------------

 JUMPING

 g < ESC-< * Go to first line in file (or line N).
 G > ESC-> * Go to last line in file (or line N).
 p % * Go to beginning of file (or N percent into file).
</pre>

If you just want to more easily read big man pages, this should work.